dialpad and gateway interaction

build.gradle

@@ -79,7 +79,7 @@ dependencies {
     implementation "com.squareup.okhttp3:okhttp:4.10.0"
 
     implementation 'com.google.guava:guava:31.1-android'
-    quicksyImplementation 'io.michaelrocks:libphonenumber-android:8.12.49'
+    implementation 'io.michaelrocks:libphonenumber-android:8.12.49'
     implementation 'im.conversations.webrtc:webrtc-android:104.0.0'
 
     implementation 'androidx.constraintlayout:constraintlayout:2.1.4'

src/conversations/java/eu/siacs/conversations/utils/PhoneNumberUtilWrapper.java

@@ -2,10 +2,103 @@ package eu.siacs.conversations.utils;
 
 import android.content.Context;
 
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Locale;
+
 import eu.siacs.conversations.xmpp.Jid;
+import io.michaelrocks.libphonenumber.android.NumberParseException;
+import io.michaelrocks.libphonenumber.android.PhoneNumberUtil;
+import io.michaelrocks.libphonenumber.android.Phonenumber;
 
 public class PhoneNumberUtilWrapper {
+
+    private static volatile PhoneNumberUtil instance;
+
+
+    public static String getCountryForCode(String code) {
+        Locale locale = new Locale("", code);
+        return locale.getDisplayCountry();
+    }
+
     public static String toFormattedPhoneNumber(Context context, Jid jid) {
-        throw new AssertionError("This method is not implemented in Conversations");
+        try {
+            return getInstance(context).format(toPhoneNumber(context, jid), PhoneNumberUtil.PhoneNumberFormat.INTERNATIONAL).replace(' ','\u202F');
+        } catch (Exception e) {
+            return jid.getEscapedLocal();
         }
     }
+
+    public static Phonenumber.PhoneNumber toPhoneNumber(Context context, Jid jid) throws NumberParseException {
+        return getInstance(context).parse(jid.getEscapedLocal(), "de");
+    }
+
+    public static String normalize(Context context, String input) throws IllegalArgumentException, NumberParseException {
+        return normalize(context, input, false);
+    }
+
+    public static String normalize(Context context, String input, boolean preferNetwork) throws IllegalArgumentException, NumberParseException {
+        final Phonenumber.PhoneNumber number = getInstance(context).parse(input, LocationProvider.getUserCountry(context, preferNetwork));
+        if (!getInstance(context).isValidNumber(number)) {
+            throw new IllegalArgumentException(String.format("%s is not a valid phone number", input));
+        }
+        return normalize(context, number);
+    }
+
+    public static String normalize(Context context, Phonenumber.PhoneNumber phoneNumber) {
+        return getInstance(context).format(phoneNumber, PhoneNumberUtil.PhoneNumberFormat.E164);
+    }
+
+    public static PhoneNumberUtil getInstance(final Context context) {
+        PhoneNumberUtil localInstance = instance;
+        if (localInstance == null) {
+            synchronized (PhoneNumberUtilWrapper.class) {
+                localInstance = instance;
+                if (localInstance == null) {
+                    instance = localInstance = PhoneNumberUtil.createInstance(context);
+                }
+
+            }
+        }
+        return localInstance;
+    }
+
+    public static List<Country> getCountries(final Context context) {
+        List<Country> countries = new ArrayList<>();
+        for (String region : getInstance(context).getSupportedRegions()) {
+            countries.add(new Country(region, getInstance(context).getCountryCodeForRegion(region)));
+        }
+        return countries;
+
+    }
+
+    public static class Country implements Comparable<Country> {
+        private final String name;
+        private final String region;
+        private final int code;
+
+        Country(String region, int code) {
+            this.name = getCountryForCode(region);
+            this.region = region;
+            this.code = code;
+        }
+
+        public String getName() {
+            return name;
+        }
+
+        public String getRegion() {
+            return region;
+        }
+
+        public String getCode() {
+            return '+' + String.valueOf(code);
+        }
+
+        @Override
+        public int compareTo(Country o) {
+            return name.compareTo(o.name);
+        }
+    }
+
+}

src/main/java/eu/siacs/conversations/entities/Presences.java

@@ -149,6 +149,22 @@ public class Presences {
         return false;
     }
 
+    public boolean anyIdentity(final String category, final String type) {
+        synchronized (this.presences) {
+            if (this.presences.size() == 0) {
+                // https://github.com/iNPUTmice/Conversations/issues/4230
+                return false;
+            }
+            for (Presence presence : this.presences.values()) {
+                ServiceDiscoveryResult disco = presence.getServiceDiscoveryResult();
+                if (disco != null && disco.hasIdentity(category, type)) {
+                    return true;
+                }
+            }
+        }
+        return false;
+    }
+
     public Pair<Map<String, String>, Map<String, String>> toTypeAndNameMap() {
         Map<String, String> typeMap = new HashMap<>();
         Map<String, String> nameMap = new HashMap<>();

src/main/java/eu/siacs/conversations/services/XmppConnectionService.java

@@ -153,6 +153,7 @@ import eu.siacs.conversations.xml.Namespace;
 import eu.siacs.conversations.xmpp.Jid;
 import eu.siacs.conversations.xmpp.OnBindListener;
 import eu.siacs.conversations.xmpp.OnContactStatusChanged;
+import eu.siacs.conversations.xmpp.OnGatewayResult;
 import eu.siacs.conversations.xmpp.OnIqPacketReceived;
 import eu.siacs.conversations.xmpp.OnKeyStatusUpdated;
 import eu.siacs.conversations.xmpp.OnMessageAcknowledged;
@@ -3376,6 +3377,24 @@ public class XmppConnectionService extends Service {
         fetchConferenceConfiguration(conversation, null);
     }
 
+    public void checkIfMuc(final Account account, final Jid jid, eu.siacs.conversations.utils.Consumer<Boolean> cb) {
+        if (jid.isDomainJid()) {
+            // Spec basically says MUC needs to have a node
+            // And also specifies that MUC and MUC service should have the same identity...
+            cb.accept(false);
+            return;
+        }
+
+        IqPacket request = mIqGenerator.queryDiscoInfo(jid.asBareJid());
+        sendIqPacket(account, request, (acct, reply) -> {
+            ServiceDiscoveryResult result = new ServiceDiscoveryResult(reply);
+            cb.accept(
+                    result.getFeatures().contains("http://jabber.org/protocol/muc") &&
+                            result.hasIdentity("conference", null)
+            );
+        });
+    }
+
     public void fetchConferenceConfiguration(final Conversation conversation, final OnConferenceConfigurationFetched callback) {
         IqPacket request = mIqGenerator.queryDiscoInfo(conversation.getJid().asBareJid());
         sendIqPacket(conversation.getAccount(), request, new OnIqPacketReceived() {
@@ -4741,6 +4760,24 @@ public class XmppConnectionService extends Service {
         }
     }
 
+    public void fetchFromGateway(Account account, final Jid jid, final String input, final OnGatewayResult callback) {
+        IqPacket request = new IqPacket(input == null ? IqPacket.TYPE.GET : IqPacket.TYPE.SET);
+        request.setTo(jid);
+        Element query = request.query("jabber:iq:gateway");
+        if (input != null) {
+            Element prompt = query.addChild("prompt");
+            prompt.setContent(input);
+        }
+        sendIqPacket(account, request, (Account acct, IqPacket packet) -> {
+            if (packet.getType() == IqPacket.TYPE.RESULT) {
+                callback.onGatewayResult(packet.query().findChildContent(input == null ? "prompt" : "jid"), null);
+            } else {
+                Element error = packet.findChild("error");
+                callback.onGatewayResult(null, error == null ? null : error.findChildContent("text"));
+            }
+        });
+    }
+
     public void fetchCaps(Account account, final Jid jid, final Presence presence) {
         final Pair<String, String> key = new Pair<>(presence.getHash(), presence.getVer());
         final ServiceDiscoveryResult disco = getCachedServiceDiscoveryResult(key);

src/main/java/eu/siacs/conversations/ui/BlocklistActivity.java

@@ -80,12 +80,14 @@ public class BlocklistActivity extends AbstractSearchableListItemActivity implem
 				getString(R.string.block_jabber_id),
 				getString(R.string.block),
 				null,
+				null,
 				account.getJid().asBareJid().toEscapedString(),
 				true,
-				false
+				false,
+				EnterJidDialog.SanityCheck.NO
 		);
 
-		dialog.setOnEnterJidDialogPositiveListener((accountJid, contactJid) -> {
+		dialog.setOnEnterJidDialogPositiveListener((accountJid, contactJid, x, y) -> {
 			Blockable blockable = new RawBlockable(account, contactJid);
 			if (xmppConnectionService.sendBlockRequest(blockable, false)) {
 				Toast.makeText(BlocklistActivity.this, R.string.corresponding_conversations_closed, Toast.LENGTH_SHORT).show();

src/main/java/eu/siacs/conversations/ui/ChooseContactActivity.java

@@ -314,13 +314,15 @@ public class ChooseContactActivity extends AbstractSearchableListItemActivity im
                 mActivatedAccounts,
                 getString(R.string.enter_contact),
                 getString(R.string.select),
+                null,
                 jid == null ? null : jid.asBareJid().toString(),
                 getIntent().getStringExtra(EXTRA_ACCOUNT),
                 true,
-                false
+                false,
+                EnterJidDialog.SanityCheck.NO
         );
 
-        dialog.setOnEnterJidDialogPositiveListener((accountJid, contactJid) -> {
+        dialog.setOnEnterJidDialogPositiveListener((accountJid, contactJid, x, y) -> {
             final Intent request = getIntent();
             final Intent data = new Intent();
             data.putExtra("contact", contactJid.toString());

src/main/java/eu/siacs/conversations/ui/EnterJidDialog.java

@@ -2,73 +2,106 @@ package eu.siacs.conversations.ui;
 
 import android.app.Activity;
 import android.app.Dialog;
+import android.content.DialogInterface.OnClickListener;
+import android.content.DialogInterface;
 import android.os.Bundle;
 import android.text.Editable;
+import android.text.InputType;
 import android.text.TextWatcher;
+import android.util.Pair;
+import android.view.LayoutInflater;
 import android.view.View;
+import android.view.ViewGroup;
+import android.widget.AdapterView;
 import android.widget.ArrayAdapter;
+import android.widget.TextView;
+import android.widget.ToggleButton;
 
 import androidx.annotation.NonNull;
 import androidx.appcompat.app.AlertDialog;
 import androidx.databinding.DataBindingUtil;
 import androidx.fragment.app.DialogFragment;
+import androidx.recyclerview.widget.RecyclerView;
+import androidx.recyclerview.widget.LinearLayoutManager;
 
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.List;
+import java.util.Map;
+
+import io.michaelrocks.libphonenumber.android.NumberParseException;
 
 import eu.siacs.conversations.Config;
 import eu.siacs.conversations.R;
 import eu.siacs.conversations.databinding.EnterJidDialogBinding;
 import eu.siacs.conversations.services.XmppConnectionService;
+import eu.siacs.conversations.entities.Account;
+import eu.siacs.conversations.entities.Contact;
+import eu.siacs.conversations.entities.Presence;
+import eu.siacs.conversations.entities.ServiceDiscoveryResult;
 import eu.siacs.conversations.ui.adapter.KnownHostsAdapter;
 import eu.siacs.conversations.ui.interfaces.OnBackendConnected;
 import eu.siacs.conversations.ui.util.DelayedHintHelper;
+import eu.siacs.conversations.utils.PhoneNumberUtilWrapper;
 import eu.siacs.conversations.xmpp.Jid;
+import eu.siacs.conversations.xmpp.OnGatewayResult;
 
 public class EnterJidDialog extends DialogFragment implements OnBackendConnected, TextWatcher {
 
     private static final List<String> SUSPICIOUS_DOMAINS =
-            Arrays.asList("conference", "muc", "room", "rooms", "chat");
+            Arrays.asList("conference", "muc", "room", "rooms");
 
     private OnEnterJidDialogPositiveListener mListener = null;
 
     private static final String TITLE_KEY = "title";
     private static final String POSITIVE_BUTTON_KEY = "positive_button";
+    private static final String SECONDARY_BUTTON_KEY = "secondary_button";
     private static final String PREFILLED_JID_KEY = "prefilled_jid";
     private static final String ACCOUNT_KEY = "account";
     private static final String ALLOW_EDIT_JID_KEY = "allow_edit_jid";
     private static final String ACCOUNTS_LIST_KEY = "activated_accounts_list";
     private static final String SANITY_CHECK_JID = "sanity_check_jid";
+    private static final String SHOW_BOOKMARK_CHECKBOX = "show_bookmark_checkbox";
 
     private KnownHostsAdapter knownHostsAdapter;
     private Collection<String> whitelistedDomains = Collections.emptyList();
 
     private EnterJidDialogBinding binding;
     private AlertDialog dialog;
-    private boolean sanityCheckJid = false;
+    private SanityCheck sanityCheckJid = SanityCheck.NO;
 
     private boolean issuedWarning = false;
+    private GatewayListAdapter gatewayListAdapter = new GatewayListAdapter();
+
+    public static enum SanityCheck {
+        NO,
+        YES,
+        ALLOW_MUC
+    }
 
     public static EnterJidDialog newInstance(
             final List<String> activatedAccounts,
             final String title,
             final String positiveButton,
+            final String secondaryButton,
             final String prefilledJid,
             final String account,
             boolean allowEditJid,
-            final boolean sanity_check_jid) {
+            boolean showBookmarkCheckbox,
+            final SanityCheck sanity_check_jid) {
         EnterJidDialog dialog = new EnterJidDialog();
         Bundle bundle = new Bundle();
         bundle.putString(TITLE_KEY, title);
         bundle.putString(POSITIVE_BUTTON_KEY, positiveButton);
+        bundle.putString(SECONDARY_BUTTON_KEY, secondaryButton);
         bundle.putString(PREFILLED_JID_KEY, prefilledJid);
         bundle.putString(ACCOUNT_KEY, account);
         bundle.putBoolean(ALLOW_EDIT_JID_KEY, allowEditJid);
         bundle.putStringArrayList(ACCOUNTS_LIST_KEY, (ArrayList<String>) activatedAccounts);
-        bundle.putBoolean(SANITY_CHECK_JID, sanity_check_jid);
+        bundle.putInt(SANITY_CHECK_JID, sanity_check_jid.ordinal());
+        bundle.putBoolean(SHOW_BOOKMARK_CHECKBOX, showBookmarkCheckbox);
         dialog.setArguments(bundle);
         return dialog;
     }
@@ -110,7 +143,11 @@ public class EnterJidDialog extends DialogFragment implements OnBackendConnected
                 binding.jid.setCursorVisible(false);
             }
         }
-        sanityCheckJid = getArguments().getBoolean(SANITY_CHECK_JID, false);
+        sanityCheckJid = SanityCheck.values()[getArguments().getInt(SANITY_CHECK_JID, SanityCheck.NO.ordinal())];
+
+        if (!getArguments().getBoolean(SHOW_BOOKMARK_CHECKBOX, false)) {
+            binding.bookmark.setVisibility(View.GONE);
+        }
 
         DelayedHintHelper.setHint(R.string.account_settings_example_jabber_id, binding.jid);
 
@@ -129,64 +166,112 @@ public class EnterJidDialog extends DialogFragment implements OnBackendConnected
             binding.account.setAdapter(adapter);
         }
 
-        builder.setView(binding.getRoot());
+        binding.gatewayList.setLayoutManager(new LinearLayoutManager(getActivity(), LinearLayoutManager.HORIZONTAL, false));
-        builder.setNegativeButton(R.string.cancel, null);
+        binding.gatewayList.setAdapter(gatewayListAdapter);
-        builder.setPositiveButton(getArguments().getString(POSITIVE_BUTTON_KEY), null);
+        gatewayListAdapter.setOnEmpty(() -> binding.gatewayList.setVisibility(View.GONE));
-        this.dialog = builder.create();
+        gatewayListAdapter.setOnNonEmpty(() -> binding.gatewayList.setVisibility(View.VISIBLE));
 
-        View.OnClickListener dialogOnClick =
+        binding.account.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
-                v -> {
+            @Override
-                    handleEnter(binding, account);
+            public void onItemSelected(AdapterView accountSpinner, View view, int position, long id) {
-                };
+                XmppActivity context = (XmppActivity) getActivity();
+                if (context == null || context.xmppConnectionService == null || accountJid() == null) return;
+
+                gatewayListAdapter.clear();
+                final Account account = context.xmppConnectionService.findAccountByJid(accountJid());
+                if (account == null) return;
+
+                for (final Contact contact : account.getRoster().getContacts()) {
+                    if (contact.showInRoster() && (contact.getPresences().anyIdentity("gateway", null) || contact.getPresences().anySupport("jabber:iq:gateway"))) {
+                        context.xmppConnectionService.fetchFromGateway(account, contact.getJid(), null, (final String prompt, String errorMessage) -> {
+                            if (prompt == null && !contact.getPresences().anyIdentity("gateway", null)) return;
+
+                            context.runOnUiThread(() -> {
+                                gatewayListAdapter.add(contact, prompt);
+                            });
+                        });
+                    }
+                }
+            }
+
+            @Override
+            public void onNothingSelected(AdapterView accountSpinner) {
+                gatewayListAdapter.clear();
+            }
+        });
+
+        builder.setView(binding.getRoot());
+        builder.setPositiveButton(getArguments().getString(POSITIVE_BUTTON_KEY), null);
+        if (getArguments().getString(SECONDARY_BUTTON_KEY) == null) {
+            builder.setNegativeButton(R.string.cancel, null);
+        } else {
+            builder.setNegativeButton(getArguments().getString(SECONDARY_BUTTON_KEY), null);
+            builder.setNeutralButton(R.string.cancel, null);
+        }
+        this.dialog = builder.create();
 
         binding.jid.setOnEditorActionListener(
                 (v, actionId, event) -> {
-                    handleEnter(binding, account);
+                    handleEnter(binding, account, false);
                     return true;
                 });
 
         dialog.show();
-        dialog.getButton(AlertDialog.BUTTON_POSITIVE).setOnClickListener(dialogOnClick);
+        dialog.getButton(AlertDialog.BUTTON_POSITIVE).setOnClickListener((v) -> handleEnter(binding, account, false));
+        if (getArguments().getString(SECONDARY_BUTTON_KEY) != null) {
+            dialog.getButton(AlertDialog.BUTTON_NEGATIVE).setOnClickListener((v) -> handleEnter(binding, account, true));
+        }
         return dialog;
     }
 
-    private void handleEnter(EnterJidDialogBinding binding, String account) {
+    protected Jid accountJid() {
-        final Jid accountJid;
+        try {
+            if (Config.DOMAIN_LOCK != null) {
+                return Jid.ofEscaped((String) binding.account.getSelectedItem(), Config.DOMAIN_LOCK, null);
+            } else {
+                return Jid.ofEscaped((String) binding.account.getSelectedItem());
+            }
+        } catch (final IllegalArgumentException e) {
+            return null;
+        }
+    }
+
+    private void handleEnter(EnterJidDialogBinding binding, String account, boolean secondary) {
         if (!binding.account.isEnabled() && account == null) {
             return;
         }
-        try {
+        final Jid accountJid = accountJid();
-            if (Config.DOMAIN_LOCK != null) {
+        final OnGatewayResult finish = (final String jidString, final String errorMessage) -> {
-                accountJid =
+            Activity context = getActivity();
-                        Jid.ofEscaped(
+            if (context == null) return; // Race condition, we got the reply after the UI was closed
-                                (String) binding.account.getSelectedItem(),
+
-                                Config.DOMAIN_LOCK,
+            context.runOnUiThread(() -> {
-                                null);
+                if (errorMessage != null) {
-            } else {
+                    binding.jidLayout.setError(errorMessage);
-                accountJid = Jid.ofEscaped((String) binding.account.getSelectedItem());
-            }
-        } catch (final IllegalArgumentException e) {
                     return;
                 }
-        final Jid contactJid;
+                if (jidString == null) {
+                    binding.jidLayout.setError(getActivity().getString(R.string.invalid_jid));
+                    return;
+                }
+
+                Jid contactJid = null;
                 try {
-            contactJid = Jid.ofEscaped(binding.jid.getText().toString().trim());
+                    contactJid = Jid.ofEscaped(jidString);
                 } catch (final IllegalArgumentException e) {
                     binding.jidLayout.setError(getActivity().getString(R.string.invalid_jid));
                     return;
                 }
 
-        if (!issuedWarning && sanityCheckJid) {
+                if (!issuedWarning && sanityCheckJid != SanityCheck.NO) {
                     if (contactJid.isDomainJid()) {
-                binding.jidLayout.setError(
+                        binding.jidLayout.setError(getActivity().getString(R.string.this_looks_like_a_domain));
-                        getActivity().getString(R.string.this_looks_like_a_domain));
                         dialog.getButton(AlertDialog.BUTTON_POSITIVE).setText(R.string.add_anway);
                         issuedWarning = true;
                         return;
                     }
-            if (suspiciousSubDomain(contactJid.getDomain().toEscapedString())) {
+                    if (sanityCheckJid != SanityCheck.ALLOW_MUC && suspiciousSubDomain(contactJid.getDomain().toEscapedString())) {
-                binding.jidLayout.setError(
+                        binding.jidLayout.setError(getActivity().getString(R.string.this_looks_like_channel));
-                        getActivity().getString(R.string.this_looks_like_channel));
                         dialog.getButton(AlertDialog.BUTTON_POSITIVE).setText(R.string.add_anway);
                         issuedWarning = true;
                         return;
@@ -195,7 +280,7 @@ public class EnterJidDialog extends DialogFragment implements OnBackendConnected
 
                 if (mListener != null) {
                     try {
-                if (mListener.onEnterJidDialogPositive(accountJid, contactJid)) {
+                        if (mListener.onEnterJidDialogPositive(accountJid, contactJid, secondary, binding.bookmark.isChecked())) {
                             dialog.dismiss();
                         }
                     } catch (JidError error) {
@@ -204,6 +289,31 @@ public class EnterJidDialog extends DialogFragment implements OnBackendConnected
                         issuedWarning = false;
                     }
                 }
+            });
+        };
+
+        Pair<String,Pair<Jid,Presence>> p = gatewayListAdapter.getSelected();
+        final String type = gatewayListAdapter.getSelectedType();
+
+        // Resolve based on local settings before submission
+        if (type != null && (type.equals("pstn") || type.equals("sms"))) {
+            try {
+                binding.jid.setText(PhoneNumberUtilWrapper.normalize(getActivity(), binding.jid.getText().toString(), true));
+            } catch (NumberParseException | IllegalArgumentException | NullPointerException e) { }
+        }
+
+        if (p == null) {
+            finish.onGatewayResult(binding.jid.getText().toString().trim(), null);
+        } else if (p.first != null) { // Gateway already responsed to jabber:iq:gateway once
+            final Account acct = ((XmppActivity) getActivity()).xmppConnectionService.findAccountByJid(accountJid);
+            ((XmppActivity) getActivity()).xmppConnectionService.fetchFromGateway(acct, p.second.first, binding.jid.getText().toString().trim(), finish);
+        } else if (p.second.first.isDomainJid() && p.second.second.getServiceDiscoveryResult().getFeatures().contains("jid\\20escaping")) {
+            finish.onGatewayResult(Jid.ofLocalAndDomain(binding.jid.getText().toString().trim(), p.second.first.getDomain().toString()).toString(), null);
+        } else if (p.second.first.isDomainJid()) {
+            finish.onGatewayResult(Jid.ofLocalAndDomain(binding.jid.getText().toString().trim().replace("@", "%"), p.second.first.getDomain().toString()).toString(), null);
+        } else {
+            finish.onGatewayResult(null, null);
+        }
     }
 
     public void setOnEnterJidDialogPositiveListener(OnEnterJidDialogPositiveListener listener) {
@@ -244,7 +354,7 @@ public class EnterJidDialog extends DialogFragment implements OnBackendConnected
     }
 
     public interface OnEnterJidDialogPositiveListener {
-        boolean onEnterJidDialogPositive(Jid account, Jid contact) throws EnterJidDialog.JidError;
+        boolean onEnterJidDialogPositive(Jid account, Jid contact, boolean secondary, boolean save) throws EnterJidDialog.JidError;
     }
 
     public static class JidError extends Exception {
@@ -276,4 +386,210 @@ public class EnterJidDialog extends DialogFragment implements OnBackendConnected
         final String[] parts = domain.split("\\.");
         return parts.length >= 3 && SUSPICIOUS_DOMAINS.contains(parts[0]);
     }
+
+    protected class GatewayListAdapter extends RecyclerView.Adapter<GatewayListAdapter.ViewHolder> {
+        protected class ViewHolder extends RecyclerView.ViewHolder {
+            protected ToggleButton button;
+            protected int index;
+
+            public ViewHolder(View view, int i) {
+                super(view);
+                this.button = (ToggleButton) view.findViewById(R.id.button);
+                setIndex(i);
+                button.setOnClickListener(new View.OnClickListener() {
+                    @Override
+                    public void onClick(View v) {
+                        button.setChecked(true); // Force visual not to flap to unchecked
+                        setSelected(index);
+                    }
+                });
+            }
+
+            public void setIndex(int i) {
+                this.index = i;
+                button.setChecked(selected == i);
+            }
+
+            public void useButton(int res) {
+                button.setText(res);
+                button.setTextOff(button.getText());
+                button.setTextOn(button.getText());
+                button.setChecked(selected == this.index);
+                binding.gatewayList.setVisibility(View.VISIBLE);
+                button.setVisibility(View.VISIBLE);
+            }
+
+            public void useButton(String txt) {
+                button.setTextOff(txt);
+                button.setTextOn(txt);
+                button.setChecked(selected == this.index);
+                binding.gatewayList.setVisibility(View.VISIBLE);
+                button.setVisibility(View.VISIBLE);
+            }
+        }
+
+        protected List<Pair<Contact,String>> gateways = new ArrayList();
+        protected int selected = 0;
+        protected Runnable onEmpty = () -> {};
+        protected Runnable onNonEmpty = () -> {};
+
+        @Override
+        public ViewHolder onCreateViewHolder(ViewGroup viewGroup, int i) {
+            View view = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.enter_jid_dialog_gateway_list_item, null);
+            return new ViewHolder(view, i);
+        }
+
+        @Override
+        public void onBindViewHolder(ViewHolder viewHolder, int i) {
+            viewHolder.setIndex(i);
+
+            if(i == 0) {
+                viewHolder.useButton(R.string.account_settings_jabber_id);
+            } else {
+                viewHolder.useButton(getLabel(i));
+            }
+        }
+
+        @Override
+        public int getItemCount() {
+            return this.gateways.size() + 1;
+        }
+
+        public void setSelected(int i) {
+            int old = this.selected;
+            this.selected = i;
+
+            if(i == 0) {
+                binding.jid.setThreshold(1);
+                binding.jid.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_EMAIL_ADDRESS | InputType.TYPE_TEXT_FLAG_AUTO_COMPLETE);
+                binding.jidLayout.setHint(R.string.account_settings_jabber_id);
+
+                if(binding.jid.hasFocus()) {
+                    binding.jid.setHint(R.string.account_settings_example_jabber_id);
+                } else {
+                    DelayedHintHelper.setHint(R.string.account_settings_example_jabber_id, binding.jid);
+                }
+            } else {
+                binding.jid.setThreshold(999999); // do not autocomplete
+                binding.jid.setHint(null);
+                binding.jid.setOnFocusChangeListener((v, hasFocus) -> {});
+                binding.jidLayout.setHint(this.gateways.get(i-1).second);
+
+                String type = getType(i);
+                if (type == null) type = "";
+                if (type.equals("pstn") || type.equals("sms")) {
+                    binding.jid.setInputType(InputType.TYPE_CLASS_PHONE);
+                } else if (type.equals("email") || type.equals("sip")) {
+                    binding.jid.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_EMAIL_ADDRESS);
+
+                    if(binding.jid.hasFocus()) {
+                        binding.jid.setHint(R.string.account_settings_example_jabber_id);
+                    } else {
+                        DelayedHintHelper.setHint(R.string.account_settings_example_jabber_id, binding.jid);
+                    }
+                } else {
+                    binding.jid.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS);
+                }
+            }
+
+            notifyItemChanged(old);
+            notifyItemChanged(i);
+        }
+
+        public String getLabel(Contact gateway) {
+            String type = getType(gateway);
+            if (type != null) return type;
+
+            return gateway.getDisplayName();
+        }
+
+        public String getLabel(int i) {
+            if (i == 0) return null;
+
+            return getLabel(this.gateways.get(i-1).first);
+        }
+
+        public String getType(int i) {
+            if (i == 0) return null;
+
+            return getType(this.gateways.get(i-1).first);
+        }
+
+        public String getType(Contact gateway) {
+            List<String> types = getTypes(gateway);
+            return types.isEmpty() ? null : types.get(0);
+        }
+
+        public List<String> getTypes(Contact gateway) {
+            List<String> types = new ArrayList<>();
+
+            for(Presence p : gateway.getPresences().getPresences()) {
+                if(p.getServiceDiscoveryResult() != null) {
+                    for (ServiceDiscoveryResult.Identity id : p.getServiceDiscoveryResult().getIdentities()) {
+                        if ("gateway".equals(id.getCategory())) types.add(id.getType());
+                    }
+                }
+            }
+
+            return types;
+        }
+
+        public String getSelectedType() {
+            return getType(selected);
+        }
+
+        public Pair<String, Pair<Jid,Presence>> getSelected() {
+            if(this.selected == 0) {
+                return null; // No gateway, just use direct JID entry
+            }
+
+            Pair<Contact,String> gateway = this.gateways.get(this.selected - 1);
+
+            Pair<Jid,Presence> presence = null;
+            for (Map.Entry<String,Presence> e : gateway.first.getPresences().getPresencesMap().entrySet()) {
+                Presence p = e.getValue();
+                if (p.getServiceDiscoveryResult() != null) {
+                    if (p.getServiceDiscoveryResult().getFeatures().contains("jabber:iq:gateway")) {
+                        if (e.getKey().equals("")) {
+                            presence = new Pair<>(gateway.first.getJid(), p);
+                        } else {
+                            presence = new Pair<>(gateway.first.getJid().withResource(e.getKey()), p);
+                        }
+                        break;
+                    }
+                    if (p.getServiceDiscoveryResult().hasIdentity("gateway", null)) {
+                        if (e.getKey().equals("")) {
+                            presence = new Pair<>(gateway.first.getJid(), p);
+                        } else {
+                            presence = new Pair<>(gateway.first.getJid().withResource(e.getKey()), p);
+                        }
+                    }
+                }
+            }
+
+            return presence == null ? null : new Pair(gateway.second, presence);
+        }
+
+        public void setOnEmpty(Runnable r) {
+            onEmpty = r;
+        }
+
+        public void setOnNonEmpty(Runnable r) {
+            onNonEmpty = r;
+        }
+
+        public void clear() {
+            gateways.clear();
+            onEmpty.run();
+            notifyDataSetChanged();
+            setSelected(0);
+        }
+
+        public void add(Contact gateway, String prompt) {
+            if (getItemCount() < 2) onNonEmpty.run();
+            this.gateways.add(new Pair<>(gateway, prompt));
+            Collections.sort(this.gateways, (x, y) -> getLabel(x.first).compareTo(getLabel(y.first)));
+            notifyDataSetChanged();
+        }
+    }
 }

src/main/java/eu/siacs/conversations/ui/RtpSessionActivity.java

@@ -10,7 +10,6 @@ import android.app.PictureInPictureParams;
 import android.content.ActivityNotFoundException;
 import android.content.Context;
 import android.content.Intent;
-import android.content.pm.ActivityInfo;
 import android.content.pm.PackageManager;
 import android.os.Build;
 import android.os.Bundle;
@@ -40,6 +39,7 @@ import com.google.common.collect.ImmutableSet;
 import com.google.common.util.concurrent.FutureCallback;
 import com.google.common.util.concurrent.Futures;
 
+import org.jetbrains.annotations.NotNull;
 import org.webrtc.RendererCommon;
 import org.webrtc.SurfaceViewRenderer;
 import org.webrtc.VideoTrack;
@@ -58,6 +58,7 @@ import eu.siacs.conversations.entities.Contact;
 import eu.siacs.conversations.entities.Conversation;
 import eu.siacs.conversations.services.AppRTCAudioManager;
 import eu.siacs.conversations.services.XmppConnectionService;
+import eu.siacs.conversations.ui.widget.DialpadView;
 import eu.siacs.conversations.ui.util.AvatarWorkerTask;
 import eu.siacs.conversations.ui.util.MainThreadExecutor;
 import eu.siacs.conversations.ui.util.Rationals;
@@ -86,7 +87,7 @@ public class RtpSessionActivity extends XmppActivity
 
     private static final int CALL_DURATION_UPDATE_INTERVAL = 333;
 
-    private static final List<RtpEndUserState> END_CARD =
+    public static final List<RtpEndUserState> END_CARD =
             Arrays.asList(
                     RtpEndUserState.APPLICATION_ERROR,
                     RtpEndUserState.SECURITY_ERROR,
@@ -164,6 +165,17 @@ public class RtpSessionActivity extends XmppActivity
                                 | WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON);
         this.binding = DataBindingUtil.setContentView(this, R.layout.activity_rtp_session);
         setSupportActionBar(binding.toolbar);
+
+        binding.dialpad.setClickConsumer(tag -> {
+            final JingleRtpConnection connection =
+                    this.rtpConnectionReference != null ? this.rtpConnectionReference.get() : null;
+            if (connection != null) connection.applyDtmfTone(tag);
+        });
+
+        if (savedInstanceState != null) {
+            boolean dialpadVisible = savedInstanceState.getBoolean("dialpad_visible");
+            binding.dialpad.setVisibility(dialpadVisible ? View.VISIBLE : View.GONE);
+        }
     }
 
     @Override
@@ -171,10 +183,12 @@ public class RtpSessionActivity extends XmppActivity
         getMenuInflater().inflate(R.menu.activity_rtp_session, menu);
         final MenuItem help = menu.findItem(R.id.action_help);
         final MenuItem gotoChat = menu.findItem(R.id.action_goto_chat);
+        final MenuItem dialpad = menu.findItem(R.id.action_dialpad);
         final MenuItem switchToVideo = menu.findItem(R.id.action_switch_to_video);
         help.setVisible(Config.HELP != null && isHelpButtonVisible());
         gotoChat.setVisible(isSwitchToConversationVisible());
         switchToVideo.setVisible(isSwitchToVideoVisible());
+        dialpad.setVisible(isAudioOnlyConversation());
         return super.onCreateOptionsMenu(menu);
     }
 
@@ -212,6 +226,13 @@ public class RtpSessionActivity extends XmppActivity
                 && STATES_SHOWING_SWITCH_TO_CHAT.contains(connection.getEndUserState());
     }
 
+    private boolean isAudioOnlyConversation() {
+        final JingleRtpConnection connection =
+                this.rtpConnectionReference != null ? this.rtpConnectionReference.get() : null;
+
+        return connection != null && !connection.getMedia().contains(Media.VIDEO);
+    }
+
     private boolean isSwitchToVideoVisible() {
         final JingleRtpConnection connection =
                 this.rtpConnectionReference != null ? this.rtpConnectionReference.get() : null;
@@ -229,6 +250,15 @@ public class RtpSessionActivity extends XmppActivity
         switchToConversation(conversation);
     }
 
+    private void toggleDialpadVisibility() {
+        if (binding.dialpad.getVisibility() == View.VISIBLE) {
+            binding.dialpad.setVisibility(View.GONE);
+        }
+        else {
+            binding.dialpad.setVisibility(View.VISIBLE);
+        }
+    }
+
     public boolean onOptionsItemSelected(final MenuItem item) {
         switch (item.getItemId()) {
             case R.id.action_help:
@@ -237,6 +267,9 @@ public class RtpSessionActivity extends XmppActivity
             case R.id.action_goto_chat:
                 switchToConversation();
                 return true;
+            case R.id.action_dialpad:
+                toggleDialpadVisibility();
+                return true;
             case R.id.action_switch_to_video:
                 requestPermissionAndSwitchToVideo();
                 return true;
@@ -407,7 +440,7 @@ public class RtpSessionActivity extends XmppActivity
 
     private void putScreenInCallMode(final Set<Media> media) {
         getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
-        if (Media.audioOnly(media)) {
+        if (!media.contains(Media.VIDEO)) {
             final JingleRtpConnection rtpConnection =
                     rtpConnectionReference != null ? rtpConnectionReference.get() : null;
             final AppRTCAudioManager audioManager =
@@ -418,15 +451,6 @@ public class RtpSessionActivity extends XmppActivity
                 acquireProximityWakeLock();
             }
         }
-        lockOrientation(media);
-    }
-
-    private void lockOrientation(final Set<Media> media) {
-        if (Media.audioOnly(media)) {
-            setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
-        } else {
-            setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED);
-        }
     }
 
     @SuppressLint("WakelockTimeout")
@@ -552,7 +576,7 @@ public class RtpSessionActivity extends XmppActivity
         }
     }
 
-    private void setWidth(final RtpEndUserState state) {
+    private void setWith(final RtpEndUserState state) {
         setWith(getWith(), state);
     }
 
@@ -759,8 +783,9 @@ public class RtpSessionActivity extends XmppActivity
                             .getJingleConnectionManager()
                             .getTerminalSessionState(with, sessionId);
             if (terminatedRtpSession == null) {
-                throw new IllegalStateException(
+                Log.e(Config.LOGTAG, "failed to initialize activity with running rtp session. session not found");
-                        "failed to initialize activity with running rtp session. session not found");
+                finish();
+                return true;
             }
             initializeWithTerminatedSessionState(account, with, terminatedRtpSession);
             return true;
@@ -781,7 +806,7 @@ public class RtpSessionActivity extends XmppActivity
                 requireRtpConnection().getState())) {
             putScreenInCallMode();
         }
-        setWidth(currentState);
+        setWith(currentState);
         updateVideoViews(currentState);
         updateStateDisplay(currentState, media, contentAddition);
         updateVerifiedShield(verified && STATES_SHOWING_SWITCH_TO_CHAT.contains(currentState));
@@ -1389,7 +1414,6 @@ public class RtpSessionActivity extends XmppActivity
         final AbstractJingleConnection.Id id = requireRtpConnection().getId();
         final boolean verified = requireRtpConnection().isVerified();
         final Set<Media> media = getMedia();
-        lockOrientation(media);
         final ContentAddition contentAddition = getPendingContentAddition();
         final Contact contact = getWith();
         if (account == id.account && id.with.equals(with) && id.sessionId.equals(sessionId)) {
@@ -1453,6 +1477,12 @@ public class RtpSessionActivity extends XmppActivity
         }
     }
 
+    @Override
+    protected void onSaveInstanceState(@NonNull @NotNull Bundle outState) {
+        super.onSaveInstanceState(outState);
+        outState.putBoolean("dialpad_visible", binding.dialpad.getVisibility() == View.VISIBLE);
+    }
+
     private void updateRtpSessionProposalState(
             final Account account, final Jid with, final RtpEndUserState state) {
         final Intent currentIntent = getIntent();

src/main/java/eu/siacs/conversations/ui/StartConversationActivity.java

@@ -517,15 +517,17 @@ public class StartConversationActivity extends XmppActivity implements XmppConne
         ft.addToBackStack(null);
         EnterJidDialog dialog = EnterJidDialog.newInstance(
                 mActivatedAccounts,
-                getString(R.string.add_contact),
+                getString(R.string.start_conversation),
-                getString(R.string.add),
+                getString(R.string.message),
+                "Call",
                 prefilledJid,
                 invite == null ? null : invite.account,
                 invite == null || !invite.hasFingerprints(),
-                true
+                true,
+                EnterJidDialog.SanityCheck.ALLOW_MUC
         );
 
-        dialog.setOnEnterJidDialogPositiveListener((accountJid, contactJid) -> {
+        dialog.setOnEnterJidDialogPositiveListener((accountJid, contactJid, call, save) -> {
             if (!xmppConnectionServiceBound) {
                 return false;
             }
@@ -534,25 +536,57 @@ public class StartConversationActivity extends XmppActivity implements XmppConne
             if (account == null) {
                 return true;
             }
-
             final Contact contact = account.getRoster().getContact(contactJid);
+
             if (invite != null && invite.getName() != null) {
                 contact.setServerName(invite.getName());
             }
-            if (contact.isSelf()) {
+
-                switchToConversation(contact);
+            if (contact.isSelf() || contact.showInRoster()) {
+                switchToConversationDoNotAppend(contact, invite == null ? null : invite.getBody(), call ? "call" : null);
                 return true;
-            } else if (contact.showInRoster()) {
+            }
-                throw new EnterJidDialog.JidError(getString(R.string.contact_already_exists));
+
+            xmppConnectionService.checkIfMuc(account, contactJid, (isMuc) -> {
+                if (isMuc) {
+                    if (save) {
+                        Bookmark bookmark = account.getBookmark(contactJid);
+                        if (bookmark != null) {
+                            openConversationsForBookmark(bookmark);
                         } else {
+                            bookmark = new Bookmark(account, contactJid.asBareJid());
+                            bookmark.setAutojoin(getBooleanPreference("autojoin", R.bool.autojoin));
+                            final String nick = contactJid.getResource();
+                            if (nick != null && !nick.isEmpty() && !nick.equals(MucOptions.defaultNick(account))) {
+                                bookmark.setNick(nick);
+                            }
+                            xmppConnectionService.createBookmark(account, bookmark);
+                            final Conversation conversation = xmppConnectionService
+                                    .findOrCreateConversation(account, contactJid, true, true, true);
+                            bookmark.setConversation(conversation);
+                            switchToConversationDoNotAppend(conversation, invite == null ? null : invite.getBody());
+                        }
+                    } else {
+                        final Conversation conversation = xmppConnectionService.findOrCreateConversation(account, contactJid, true, true, true);
+                        switchToConversationDoNotAppend(conversation, invite == null ? null : invite.getBody());
+                    }
+                } else {
+                    if (save) {
                         final String preAuth = invite == null ? null : invite.getParameter(XmppUri.PARAMETER_PRE_AUTH);
                         xmppConnectionService.createContact(contact, true, preAuth);
                         if (invite != null && invite.hasFingerprints()) {
                             xmppConnectionService.verifyFingerprints(contact, invite.getFingerprints());
                         }
-                switchToConversationDoNotAppend(contact, invite == null ? null : invite.getBody());
-                return true;
                     }
+                    switchToConversationDoNotAppend(contact, invite == null ? null : invite.getBody(), call ? "call" : null);
+                }
+
+                try {
+                    dialog.dismiss();
+                } catch (final IllegalStateException e) { }
+            });
+
+            return false;
         });
         dialog.show(ft, FRAGMENT_TAG_DIALOG);
     }

src/main/java/eu/siacs/conversations/ui/XmppActivity.java

@@ -551,6 +551,11 @@ public abstract class XmppActivity extends ActionBarActivity {
         switchToConversation(conversation, text, false, null, false, true);
     }
 
+    protected void switchToConversationDoNotAppend(Contact contact, String body, String postInit) {
+        Conversation conversation = xmppConnectionService.findOrCreateConversation(contact.getAccount(), contact.getJid(), false, true);
+        switchToConversation(conversation, body, false, null, false, true, postInit);
+    }
+
     public void highlightInMuc(Conversation conversation, String nick) {
         switchToConversation(conversation, null, false, nick, false, false);
     }
@@ -559,7 +564,13 @@ public abstract class XmppActivity extends ActionBarActivity {
         switchToConversation(conversation, null, false, nick, true, false);
     }
 
-    private void switchToConversation(Conversation conversation, String text, boolean asQuote, String nick, boolean pm, boolean doNotAppend) {
+    public void switchToConversation(Conversation conversation, String text, boolean asQuote, String nick, boolean pm, boolean doNotAppend) {
+        switchToConversation(conversation, text, asQuote, nick, pm, doNotAppend, null);
+    }
+
+    public void switchToConversation(Conversation conversation, String text, boolean asQuote, String nick, boolean pm, boolean doNotAppend, String postInit) {
+        if (conversation == null) return;
+
         Intent intent = new Intent(this, ConversationsActivity.class);
         intent.setAction(ConversationsActivity.ACTION_VIEW_CONVERSATION);
         intent.putExtra(ConversationsActivity.EXTRA_CONVERSATION, conversation.getUuid());
@@ -576,6 +587,7 @@ public abstract class XmppActivity extends ActionBarActivity {
         if (doNotAppend) {
             intent.putExtra(ConversationsActivity.EXTRA_DO_NOT_APPEND, true);
         }
+        intent.putExtra(ConversationsActivity.EXTRA_POST_INIT_ACTION, postInit);
         intent.setFlags(intent.getFlags() | Intent.FLAG_ACTIVITY_CLEAR_TOP);
         startActivity(intent);
         finish();

src/main/java/eu/siacs/conversations/ui/widget/DialpadView.java

@@ -0,0 +1,69 @@
+/*
+ * Copyright 2012-2015 the original author or authors.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package eu.siacs.conversations.ui.widget;
+
+import android.content.Context;
+import android.util.AttributeSet;
+import android.view.LayoutInflater;
+import android.view.View;
+
+import androidx.constraintlayout.widget.ConstraintLayout;
+import androidx.databinding.DataBindingUtil;
+
+import eu.siacs.conversations.R;
+import eu.siacs.conversations.databinding.DialpadBinding;
+import eu.siacs.conversations.utils.Consumer;
+
+public class DialpadView extends ConstraintLayout implements View.OnClickListener {
+
+    protected Consumer<String> clickConsumer = null;
+
+    public DialpadView(Context context) {
+        super(context);
+        init();
+    }
+
+    public DialpadView(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        init();
+    }
+
+    public DialpadView(Context context, AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+        init();
+    }
+
+    public void setClickConsumer(Consumer<String> clickConsumer) {
+        this.clickConsumer = clickConsumer;
+    }
+
+    private void init() {
+        DialpadBinding binding = DataBindingUtil.inflate(
+            LayoutInflater.from(getContext()),
+            R.layout.dialpad,
+            this,
+            true
+        );
+        binding.setDialpadView(this);
+    }
+
+    @Override
+    public void onClick(View v) {
+        clickConsumer.accept(v.getTag().toString());
+    }
+}

src/main/java/eu/siacs/conversations/utils/LocationProvider.java

@@ -21,19 +21,25 @@ public class LocationProvider {
     public static final GeoPoint FALLBACK = new GeoPoint(0.0, 0.0);
 
     public static String getUserCountry(final Context context) {
+        return getUserCountry(context, false);
+    }
+
+    public static String getUserCountry(final Context context, boolean preferNetwork) {
         try {
             final TelephonyManager tm = ContextCompat.getSystemService(context, TelephonyManager.class);
             if (tm == null) {
                 return getUserCountryFallback();
             }
-            final String simCountry = tm.getSimCountryIso();
+            final String simCountry = tm.getSimOperator().equals("20801") ? "us" : tm.getSimCountryIso();
-            if (simCountry != null && simCountry.length() == 2) { // SIM country code is available
+            final String networkCountry = tm.getPhoneType() == TelephonyManager.PHONE_TYPE_CDMA ? null : tm.getNetworkCountryIso(); // if device is not 3G would be unreliable
-                return simCountry.toUpperCase(Locale.US);
+            if (preferNetwork && networkCountry != null && networkCountry.length() == 2) {
-            } else if (tm.getPhoneType() != TelephonyManager.PHONE_TYPE_CDMA) { // device is not 3G (would be unreliable)
-                String networkCountry = tm.getNetworkCountryIso();
-                if (networkCountry != null && networkCountry.length() == 2) { // network country code is available
                 return networkCountry.toUpperCase(Locale.US);
             }
+
+            if (simCountry != null && simCountry.length() == 2) { // SIM country code is available
+                return simCountry.toUpperCase(Locale.US);
+            } else if (networkCountry != null && networkCountry.length() == 2) { // network country code is available
+                return networkCountry.toUpperCase(Locale.US);
             }
             return getUserCountryFallback();
         } catch (final Exception e) {

src/main/java/eu/siacs/conversations/xmpp/OnGatewayResult.java

@@ -0,0 +1,7 @@
+package eu.siacs.conversations.xmpp;
+
+public interface OnGatewayResult {
+   // if prompt is null, there was an error
+   // errorText may or may not be set
+   public void onGatewayResult(String prompt, String errorText);
+}

src/main/java/eu/siacs/conversations/xmpp/jingle/JingleRtpConnection.java

@@ -270,6 +270,10 @@ public class JingleRtpConnection extends AbstractJingleConnection
         }
     }
 
+    public boolean applyDtmfTone(String tone) {
+        return webRTCWrapper.applyDtmfTone(tone);
+    }
+
     private void receiveSessionTerminate(final JinglePacket jinglePacket) {
         respondOk(jinglePacket);
         final JinglePacket.ReasonWrapper wrapper = jinglePacket.getReason();

src/main/java/eu/siacs/conversations/xmpp/jingle/ToneManager.java

@@ -148,7 +148,7 @@ class ToneManager {
 
     private void scheduleWaitingTone() {
         this.currentTone = JingleConnectionManager.SCHEDULED_EXECUTOR_SERVICE.scheduleAtFixedRate(() -> {
-            startTone(ToneGenerator.TONE_CDMA_DIAL_TONE_LITE, 750);
+            startTone(ToneGenerator.TONE_CDMA_NETWORK_USA_RINGBACK, 750);
         }, 0, 3, TimeUnit.SECONDS);
     }
 
@@ -161,14 +161,16 @@ class ToneManager {
             currentTone.cancel(true);
         }
         if (toneGenerator != null) {
+            // catch race condition with already-released generator
+            try {
                 toneGenerator.stopTone();
+            } catch (final RuntimeException e) { }
         }
     }
 
-    private void startTone(final int toneType, final int durationMs) {
+    public void startTone(final int toneType, final int durationMs) {
         if (this.toneGenerator != null) {
-            this.toneGenerator.release();;
+            this.toneGenerator.release();
-
         }
         final AudioManager audioManager = ContextCompat.getSystemService(context, AudioManager.class);
         final boolean ringerModeNormal = audioManager == null || audioManager.getRingerMode() == AudioManager.RINGER_MODE_NORMAL;

src/main/java/eu/siacs/conversations/xmpp/jingle/WebRTCWrapper.java

@@ -1,6 +1,7 @@
 package eu.siacs.conversations.xmpp.jingle;
 
 import android.content.Context;
+import android.media.ToneGenerator;
 import android.os.Build;
 import android.os.Handler;
 import android.os.Looper;
@@ -8,6 +9,7 @@ import android.util.Log;
 
 import com.google.common.base.Optional;
 import com.google.common.base.Preconditions;
+import com.google.common.collect.ImmutableMap;
 import com.google.common.collect.ImmutableSet;
 import com.google.common.util.concurrent.Futures;
 import com.google.common.util.concurrent.ListenableFuture;
@@ -20,6 +22,7 @@ import org.webrtc.CandidatePairChangeEvent;
 import org.webrtc.DataChannel;
 import org.webrtc.DefaultVideoDecoderFactory;
 import org.webrtc.DefaultVideoEncoderFactory;
+import org.webrtc.DtmfSender;
 import org.webrtc.EglBase;
 import org.webrtc.IceCandidate;
 import org.webrtc.MediaConstraints;
@@ -38,6 +41,7 @@ import org.webrtc.voiceengine.WebRtcAudioEffects;
 import java.util.LinkedList;
 import java.util.List;
 import java.util.Queue;
+import java.util.Map;
 import java.util.Set;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
@@ -57,6 +61,25 @@ public class WebRTCWrapper {
 
     private final ExecutorService executorService = Executors.newSingleThreadExecutor();
 
+    private static final int TONE_DURATION = 500;
+    private static final Map<String,Integer> TONE_CODES;
+    static {
+        ImmutableMap.Builder<String,Integer> builder = new ImmutableMap.Builder<>();
+        builder.put("0", ToneGenerator.TONE_DTMF_0);
+        builder.put("1", ToneGenerator.TONE_DTMF_1);
+        builder.put("2", ToneGenerator.TONE_DTMF_2);
+        builder.put("3", ToneGenerator.TONE_DTMF_3);
+        builder.put("4", ToneGenerator.TONE_DTMF_4);
+        builder.put("5", ToneGenerator.TONE_DTMF_5);
+        builder.put("6", ToneGenerator.TONE_DTMF_6);
+        builder.put("7", ToneGenerator.TONE_DTMF_7);
+        builder.put("8", ToneGenerator.TONE_DTMF_8);
+        builder.put("9", ToneGenerator.TONE_DTMF_9);
+        builder.put("*", ToneGenerator.TONE_DTMF_S);
+        builder.put("#", ToneGenerator.TONE_DTMF_P);
+        TONE_CODES = builder.build();
+    }
+
     private static final Set<String> HARDWARE_AEC_BLACKLIST =
             new ImmutableSet.Builder<String>()
                     .add("Pixel")
@@ -510,8 +533,14 @@ public class WebRTCWrapper {
     }
 
     boolean isMicrophoneEnabled() {
-        final Optional<AudioTrack> audioTrack =
+        Optional<AudioTrack> audioTrack = null;
-                TrackWrapper.get(peerConnection, this.localAudioTrack);
+        try {
+            audioTrack = TrackWrapper.get(peerConnection, this.localAudioTrack);
+        } catch (final IllegalStateException e) {
+            Log.d(Config.LOGTAG, "unable to check microphone", e);
+            // ignoring race condition in case sender has been disposed
+            return false;
+        }
         if (audioTrack.isPresent()) {
             try {
                 return audioTrack.get().enabled();
@@ -526,8 +555,14 @@ public class WebRTCWrapper {
     }
 
     boolean setMicrophoneEnabled(final boolean enabled) {
-        final Optional<AudioTrack> audioTrack =
+        Optional<AudioTrack> audioTrack = null;
-                TrackWrapper.get(peerConnection, this.localAudioTrack);
+        try {
+            audioTrack = TrackWrapper.get(peerConnection, this.localAudioTrack);
+        } catch (final IllegalStateException e) {
+            Log.d(Config.LOGTAG, "unable to toggle microphone", e);
+            // ignoring race condition in case sender has been disposed
+            return false;
+        }
         if (audioTrack.isPresent()) {
             try {
                 audioTrack.get().setEnabled(enabled);
@@ -650,6 +685,15 @@ public class WebRTCWrapper {
         return peerConnection;
     }
 
+    public boolean applyDtmfTone(String tone) {
+        if (toneManager == null || peerConnection == null || localAudioTrack == null) {
+            return false;
+        }
+        localAudioTrack.rtpSender.dtmf().insertDtmf(tone, TONE_DURATION, 100);
+        toneManager.startTone(TONE_CODES.get(tone), TONE_DURATION);
+        return true;
+    }
+
     @Nonnull
     private PeerConnectionFactory requirePeerConnectionFactory() {
         final PeerConnectionFactory peerConnectionFactory = this.peerConnectionFactory;

src/main/res/drawable/ic_dialpad_white_24dp.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+  <path
+      android:pathData="M12,19c-1.1,0 -2,0.9 -2,2s0.9,2 2,2 2,-0.9 2,-2 -0.9,-2 -2,-2zM6,1c-1.1,0 -2,0.9 -2,2s0.9,2 2,2 2,-0.9 2,-2 -0.9,-2 -2,-2zM6,7c-1.1,0 -2,0.9 -2,2s0.9,2 2,2 2,-0.9 2,-2 -0.9,-2 -2,-2zM6,13c-1.1,0 -2,0.9 -2,2s0.9,2 2,2 2,-0.9 2,-2 -0.9,-2 -2,-2zM18,5c1.1,0 2,-0.9 2,-2s-0.9,-2 -2,-2 -2,0.9 -2,2 0.9,2 2,2zM12,13c-1.1,0 -2,0.9 -2,2s0.9,2 2,2 2,-0.9 2,-2 -0.9,-2 -2,-2zM18,13c-1.1,0 -2,0.9 -2,2s0.9,2 2,2 2,-0.9 2,-2 -0.9,-2 -2,-2zM18,7c-1.1,0 -2,0.9 -2,2s0.9,2 2,2 2,-0.9 2,-2 -0.9,-2 -2,-2zM12,7c-1.1,0 -2,0.9 -2,2s0.9,2 2,2 2,-0.9 2,-2 -0.9,-2 -2,-2zM12,1c-1.1,0 -2,0.9 -2,2s0.9,2 2,2 2,-0.9 2,-2 -0.9,-2 -2,-2z"
+      android:fillColor="#FFFFFF"/>
+</vector>

src/main/res/layout/activity_rtp_session.xml

@@ -74,7 +74,6 @@
                 android:layout_width="match_parent"
                 android:layout_height="32dp"/>
 
-
         </com.google.android.material.appbar.AppBarLayout>
 
         <RelativeLayout
@@ -92,12 +91,21 @@
                 android:textAppearance="@style/TextAppearance.Conversations.Title.Monospace"
                 tools:text="01:23" />
 
-            <com.makeramen.roundedimageview.RoundedImageView
+            <eu.siacs.conversations.ui.widget.DialpadView
+                layout="@layout/dialpad"
+                android:id="@+id/dialpad"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_alignParentBottom="true"
+                android:visibility="gone" />
+
+            <com.google.android.material.imageview.ShapeableImageView
                 android:id="@+id/contact_photo"
                 android:layout_width="@dimen/publish_avatar_size"
                 android:layout_height="@dimen/publish_avatar_size"
                 android:layout_centerInParent="true"
-                app:riv_corner_radius="@dimen/incoming_call_radius" />
+                app:strokeColor="?colorAccent"
+                app:shapeAppearance="@style/ShapeAppearanceOverlay.IncomingCall" />
 
         </RelativeLayout>
 
@@ -178,7 +186,7 @@
                     app:elevation="4dp"
                     app:fabCustomSize="72dp"
                     app:maxImageSize="36dp"
-                    tools:visibility="visible" />
+                    tools:visibility="gone" />
 
                 <com.google.android.material.floatingactionbutton.FloatingActionButton
                     android:id="@+id/accept_call"
@@ -193,7 +201,7 @@
                     app:elevation="4dp"
                     app:fabCustomSize="72dp"
                     app:maxImageSize="36dp"
-                    tools:visibility="visible" />
+                    tools:visibility="gone" />
 
             </RelativeLayout>
 
@@ -204,7 +212,7 @@
                 android:layout_centerVertical="true"
                 android:layout_margin="@dimen/in_call_fab_margin"
                 android:layout_toStartOf="@+id/end_call"
-                android:visibility="gone"
+                android:visibility="visible"
                 app:backgroundTint="?color_background_primary"
                 app:elevation="4dp"
                 app:fabSize="mini"
@@ -230,7 +238,7 @@
                 android:layout_centerVertical="true"
                 android:layout_margin="@dimen/in_call_fab_margin"
                 android:layout_toEndOf="@+id/end_call"
-                android:visibility="gone"
+                android:visibility="visible"
                 app:backgroundTint="?color_background_primary"
                 app:elevation="4dp"
                 app:fabSize="mini"
@@ -243,7 +251,7 @@
                 android:layout_centerVertical="true"
                 android:layout_margin="@dimen/in_call_fab_margin"
                 android:layout_toEndOf="@+id/in_call_action_right"
-                android:visibility="gone"
+                android:visibility="visible"
                 app:backgroundTint="?color_background_primary"
                 app:elevation="4dp"
                 app:fabSize="mini"

src/main/res/layout/dialpad.xml

@@ -0,0 +1,385 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layout xmlns:android="http://schemas.android.com/apk/res/android">
+    <data>
+        <variable name="dialpadView" type="eu.siacs.conversations.ui.widget.DialpadView"/>
+    </data>
+
+    <androidx.constraintlayout.widget.ConstraintLayout
+        xmlns:app="http://schemas.android.com/apk/res-auto"
+        xmlns:tools="http://schemas.android.com/tools"
+        android:id="@+id/dialpad_holder"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_alignParentBottom="true"
+        android:focusableInTouchMode="true"
+        android:paddingTop="@dimen/medium_margin"
+        tools:ignore="HardcodedText">
+
+
+        <RelativeLayout
+            android:onClick="@{dialpadView::onClick}"
+            android:id="@+id/dialpad_1_holder"
+            android:tag="1"
+            android:layout_width="0dp"
+            android:layout_height="0dp"
+            android:layout_marginStart="@dimen/activity_margin"
+            android:background="?attr/selectableItemBackgroundBorderless"
+            app:layout_constraintBottom_toBottomOf="@+id/dialpad_2_holder"
+            app:layout_constraintEnd_toStartOf="@+id/dialpad_2_holder"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="@+id/dialpad_2_holder"
+            android:focusable="true" >
+
+            <TextView
+                android:id="@+id/dialpad_1"
+                style="@style/DialpadNumberStyle"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_alignParentTop="true"
+                android:layout_centerHorizontal="true"
+                android:text="1" />
+        </RelativeLayout>
+
+        <RelativeLayout
+            android:onClick="@{dialpadView::onClick}"
+            android:id="@+id/dialpad_2_holder"
+            android:tag="2"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_marginBottom="@dimen/medium_margin"
+            android:background="?attr/selectableItemBackgroundBorderless"
+            app:layout_constraintBottom_toTopOf="@+id/dialpad_5_holder"
+            app:layout_constraintEnd_toStartOf="@+id/dialpad_3_holder"
+            app:layout_constraintStart_toEndOf="@+id/dialpad_1_holder">
+
+            <TextView
+                android:id="@+id/dialpad_2"
+                style="@style/DialpadNumberStyle"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_centerHorizontal="true"
+                android:text="2" />
+
+            <TextView
+                android:id="@+id/dialpad_2_letters"
+                style="@style/DialpadLetterStyle"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_below="@+id/dialpad_2"
+                android:layout_centerHorizontal="true"
+                android:layout_marginBottom="@dimen/medium_margin"
+                android:gravity="center_horizontal"
+                android:text="ABC" />
+        </RelativeLayout>
+
+        <RelativeLayout
+            android:onClick="@{dialpadView::onClick}"
+            android:id="@+id/dialpad_3_holder"
+            android:tag="3"
+            android:layout_width="0dp"
+            android:layout_height="0dp"
+            android:layout_marginEnd="@dimen/activity_margin"
+            android:background="?attr/selectableItemBackgroundBorderless"
+            app:layout_constraintBottom_toBottomOf="@+id/dialpad_2_holder"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toEndOf="@+id/dialpad_2_holder"
+            app:layout_constraintTop_toTopOf="@+id/dialpad_2_holder">
+
+            <TextView
+                android:id="@+id/dialpad_3"
+                style="@style/DialpadNumberStyle"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_centerHorizontal="true"
+                android:text="3" />
+
+            <TextView
+                android:id="@+id/dialpad_3_letters"
+                style="@style/DialpadLetterStyle"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_below="@+id/dialpad_3"
+                android:layout_centerHorizontal="true"
+                android:layout_marginBottom="@dimen/medium_margin"
+                android:gravity="center_horizontal"
+                android:text="DEF" />
+        </RelativeLayout>
+
+        <RelativeLayout
+            android:onClick="@{dialpadView::onClick}"
+            android:id="@+id/dialpad_4_holder"
+            android:tag="4"
+            android:layout_width="0dp"
+            android:layout_height="0dp"
+            android:layout_marginStart="@dimen/activity_margin"
+            android:background="?attr/selectableItemBackgroundBorderless"
+            app:layout_constraintBottom_toBottomOf="@+id/dialpad_5_holder"
+            app:layout_constraintEnd_toStartOf="@+id/dialpad_5_holder"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="@+id/dialpad_5_holder">
+
+            <TextView
+                android:id="@+id/dialpad_4"
+                style="@style/DialpadNumberStyle"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_centerHorizontal="true"
+                android:text="4" />
+
+            <TextView
+                android:id="@+id/dialpad_4_letters"
+                style="@style/DialpadLetterStyle"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_below="@+id/dialpad_4"
+                android:layout_centerHorizontal="true"
+                android:layout_marginBottom="@dimen/medium_margin"
+                android:gravity="center_horizontal"
+                android:text="GHI" />
+        </RelativeLayout>
+
+        <RelativeLayout
+            android:onClick="@{dialpadView::onClick}"
+            android:id="@+id/dialpad_5_holder"
+            android:tag="5"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_marginBottom="@dimen/medium_margin"
+            android:background="?attr/selectableItemBackgroundBorderless"
+            app:layout_constraintBottom_toTopOf="@+id/dialpad_8_holder"
+            app:layout_constraintEnd_toStartOf="@+id/dialpad_6_holder"
+            app:layout_constraintStart_toEndOf="@+id/dialpad_4_holder">
+
+            <TextView
+                android:id="@+id/dialpad_5"
+                style="@style/DialpadNumberStyle"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_centerHorizontal="true"
+                android:text="5" />
+
+            <TextView
+                android:id="@+id/dialpad_5_letters"
+                style="@style/DialpadLetterStyle"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_below="@+id/dialpad_5"
+                android:layout_centerHorizontal="true"
+                android:layout_marginBottom="@dimen/medium_margin"
+                android:gravity="center_horizontal"
+                android:text="JKL" />
+        </RelativeLayout>
+
+        <RelativeLayout
+            android:onClick="@{dialpadView::onClick}"
+            android:id="@+id/dialpad_6_holder"
+            android:tag="6"
+            android:layout_width="0dp"
+            android:layout_height="0dp"
+            android:layout_marginEnd="@dimen/activity_margin"
+            android:background="?attr/selectableItemBackgroundBorderless"
+            app:layout_constraintBottom_toBottomOf="@+id/dialpad_5_holder"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toEndOf="@+id/dialpad_5_holder"
+            app:layout_constraintTop_toTopOf="@+id/dialpad_5_holder">
+
+            <TextView
+                android:id="@+id/dialpad_6"
+                style="@style/DialpadNumberStyle"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_centerHorizontal="true"
+                android:text="6" />
+
+            <TextView
+                android:id="@+id/dialpad_6_letters"
+                style="@style/DialpadLetterStyle"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_below="@+id/dialpad_6"
+                android:layout_centerHorizontal="true"
+                android:layout_marginBottom="@dimen/medium_margin"
+                android:gravity="center_horizontal"
+                android:text="MNO" />
+        </RelativeLayout>
+
+        <RelativeLayout
+            android:onClick="@{dialpadView::onClick}"
+            android:id="@+id/dialpad_7_holder"
+            android:tag="7"
+            android:layout_width="0dp"
+            android:layout_height="0dp"
+            android:layout_marginStart="@dimen/activity_margin"
+            android:background="?attr/selectableItemBackgroundBorderless"
+            app:layout_constraintBottom_toBottomOf="@+id/dialpad_8_holder"
+            app:layout_constraintEnd_toStartOf="@+id/dialpad_8_holder"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="@+id/dialpad_8_holder">
+
+            <TextView
+                android:id="@+id/dialpad_7"
+                style="@style/DialpadNumberStyle"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_centerHorizontal="true"
+                android:text="7" />
+
+            <TextView
+                android:id="@+id/dialpad_7_letters"
+                style="@style/DialpadLetterStyle"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_below="@+id/dialpad_7"
+                android:layout_centerHorizontal="true"
+                android:layout_marginBottom="@dimen/medium_margin"
+                android:gravity="center_horizontal"
+                android:text="PQRS" />
+        </RelativeLayout>
+
+        <RelativeLayout
+            android:onClick="@{dialpadView::onClick}"
+            android:id="@+id/dialpad_8_holder"
+            android:tag="8"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_marginBottom="@dimen/medium_margin"
+            android:background="?attr/selectableItemBackgroundBorderless"
+            app:layout_constraintBottom_toTopOf="@+id/dialpad_0_holder"
+            app:layout_constraintEnd_toStartOf="@+id/dialpad_9_holder"
+            app:layout_constraintStart_toEndOf="@+id/dialpad_7_holder">
+
+            <TextView
+                android:id="@+id/dialpad_8"
+                style="@style/DialpadNumberStyle"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_centerHorizontal="true"
+                android:text="8" />
+
+            <TextView
+                android:id="@+id/dialpad_8_letters"
+                style="@style/DialpadLetterStyle"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_below="@+id/dialpad_8"
+                android:layout_centerHorizontal="true"
+                android:layout_marginBottom="@dimen/medium_margin"
+                android:gravity="center_horizontal"
+                android:text="TUV" />
+        </RelativeLayout>
+
+        <RelativeLayout
+            android:onClick="@{dialpadView::onClick}"
+            android:id="@+id/dialpad_9_holder"
+            android:tag="9"
+            android:layout_width="0dp"
+            android:layout_height="0dp"
+            android:layout_marginEnd="@dimen/activity_margin"
+            android:background="?attr/selectableItemBackgroundBorderless"
+            app:layout_constraintBottom_toBottomOf="@+id/dialpad_8_holder"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toEndOf="@+id/dialpad_8_holder"
+            app:layout_constraintTop_toTopOf="@+id/dialpad_8_holder">
+
+            <TextView
+                android:id="@+id/dialpad_9"
+                style="@style/DialpadNumberStyle"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_centerHorizontal="true"
+                android:text="9" />
+
+            <TextView
+                android:id="@+id/dialpad_9_letters"
+                style="@style/DialpadLetterStyle"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_below="@+id/dialpad_9"
+                android:layout_centerHorizontal="true"
+                android:layout_marginBottom="@dimen/medium_margin"
+                android:gravity="center_horizontal"
+                android:text="WXYZ" />
+        </RelativeLayout>
+
+        <RelativeLayout
+            android:onClick="@{dialpadView::onClick}"
+            android:id="@+id/dialpad_asterisk_holder"
+            android:tag="*"
+            android:layout_width="0dp"
+            android:layout_height="0dp"
+            android:layout_marginStart="@dimen/activity_margin"
+            android:background="?attr/selectableItemBackgroundBorderless"
+            app:layout_constraintBottom_toBottomOf="@+id/dialpad_0_holder"
+            app:layout_constraintEnd_toStartOf="@+id/dialpad_0_holder"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="@+id/dialpad_0_holder">
+
+            <TextView
+                android:id="@+id/dialpad_asterisk"
+                style="@style/DialpadNumberStyle"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_alignParentTop="true"
+                android:layout_centerHorizontal="true"
+                android:text="*" />
+        </RelativeLayout>
+
+        <RelativeLayout
+            android:onClick="@{dialpadView::onClick}"
+            android:id="@+id/dialpad_0_holder"
+            android:tag="0"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_marginBottom="@dimen/activity_margin"
+            android:background="?attr/selectableItemBackgroundBorderless"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toStartOf="@+id/dialpad_pound_holder"
+            app:layout_constraintStart_toEndOf="@+id/dialpad_asterisk_holder">
+
+            <TextView
+                android:id="@+id/dialpad_0"
+                style="@style/DialpadNumberStyle"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_centerHorizontal="true"
+                android:text="0" />
+
+            <TextView
+                android:id="@+id/dialpad_plus"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_alignTop="@+id/dialpad_0"
+                android:layout_alignBottom="@+id/dialpad_0"
+                android:layout_centerHorizontal="true"
+                android:layout_toEndOf="@+id/dialpad_0"
+                android:gravity="center"
+                android:paddingStart="@dimen/small_margin"
+                android:paddingTop="@dimen/small_margin"
+                android:text="+"
+                android:textSize="20sp" />
+        </RelativeLayout>
+
+        <RelativeLayout
+            android:onClick="@{dialpadView::onClick}"
+            android:id="@+id/dialpad_pound_holder"
+            android:tag="#"
+            android:layout_width="0dp"
+            android:layout_height="0dp"
+            android:layout_marginEnd="@dimen/activity_margin"
+            android:background="?attr/selectableItemBackgroundBorderless"
+            app:layout_constraintBottom_toBottomOf="@+id/dialpad_0_holder"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toEndOf="@+id/dialpad_0_holder"
+            app:layout_constraintTop_toTopOf="@+id/dialpad_0_holder">
+
+            <TextView
+                android:id="@+id/dialpad_pound"
+                style="@style/DialpadNumberStyle"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_centerHorizontal="true"
+                android:layout_marginEnd="@dimen/activity_margin"
+                android:text="#" />
+        </RelativeLayout>
+    </androidx.constraintlayout.widget.ConstraintLayout>
+</layout>

src/main/res/layout/enter_jid_dialog.xml

@@ -22,6 +22,11 @@
             android:layout_width="fill_parent"
             android:layout_height="wrap_content"/>
 
+        <androidx.recyclerview.widget.RecyclerView
+            android:id="@+id/gateway_list"
+            android:layout_width="fill_parent"
+            android:layout_height="wrap_content" />
+
         <com.google.android.material.textfield.TextInputLayout
             android:id="@+id/jid_layout"
             android:layout_width="match_parent"
@@ -38,5 +43,14 @@
                 android:imeOptions="actionDone|flagNoExtractUi"
                 android:inputType="textEmailAddress" />
         </com.google.android.material.textfield.TextInputLayout>
+
+        <CheckBox
+            android:id="@+id/bookmark"
+            style="@style/Widget.Conversations.CheckBox"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="8dp"
+            android:checked="true"
+            android:text="Save as Contact / Bookmark"/>
     </LinearLayout>
 </layout>

src/main/res/layout/enter_jid_dialog_gateway_list_item.xml

@@ -0,0 +1,14 @@
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+              android:layout_width="wrap_content"
+              android:layout_height="wrap_content"
+              android:orientation="vertical"
+              android:paddingRight="5dp">
+    <ToggleButton
+        android:id="@+id/button"
+        android:gravity="center"
+        android:visibility="gone"
+        android:layout_width="fill_parent"
+        android:layout_height="wrap_content"
+        android:textColor="?attr/edit_text_color"
+        android:textSize="?attr/TextSizeBody1" />
+</LinearLayout>

src/main/res/menu/activity_rtp_session.xml

@@ -8,6 +8,11 @@
         android:icon="?attr/icon_help"
         android:title="@string/help"
         app:showAsAction="always" />
+    <item
+        android:id="@+id/action_dialpad"
+        android:icon="@drawable/ic_dialpad_white_24dp"
+        android:title="@string/action_dialpad"
+        app:showAsAction="always" />
     <item
         android:id="@+id/action_goto_chat"
         android:icon="?attr/icon_goto_chat"

src/main/res/values/dimens.xml

@@ -73,5 +73,8 @@
     <dimen name="bigger_text_size">16sp</dimen>
     <dimen name="big_text_size">18sp</dimen>
 
+    <dimen name="dialpad_text_size">30sp</dimen>
+    <dimen name="activity_margin">16dp</dimen>
+
     <dimen name="colorpicker_hue_width">30dp</dimen>
 </resources>

src/main/res/values/strings.xml

@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
     <string name="action_settings">Settings</string>
+    <string name="action_dialpad">Dialpad</string>
     <string name="action_add">New conversation</string>
     <string name="action_accounts">Manage accounts</string>
     <string name="action_account">Manage account</string>

src/main/res/values/styles.xml

@@ -159,4 +159,20 @@
     <style name="TextAppearance.Conversations.Body1.Secondary.OnDark" parent="TextAppearance.Conversations.Body1">
         <item name="android:textColor">@color/white70</item>
     </style>
+
+    <style name="DialpadNumberStyle">
+        <item name="android:includeFontPadding">false</item>
+        <item name="android:textSize">@dimen/dialpad_text_size</item>
+    </style>
+
+    <style name="DialpadLetterStyle">
+        <item name="android:textSize">@dimen/smaller_text_size</item>
+        <item name="android:alpha">0.8</item>
+    </style>
+
+
+    <style name="ShapeAppearanceOverlay.IncomingCall" parent="ShapeAppearance.MaterialComponents.SmallComponent">
+        <item name="cornerFamily">rounded</item>
+        <item name="cornerSize">@dimen/incoming_call_radius</item>
+    </style>
 </resources>