diff --git a/inc/telegramclient.rb b/inc/telegramclient.rb
index 4a6ca6d..1cf79cd 100644
--- a/inc/telegramclient.rb
+++ b/inc/telegramclient.rb
@@ -70,6 +70,7 @@ class TelegramClient
     def initialize(xmpp, jid, **session)
         return unless @@config
         @logger    = Logger.new(STDOUT, level: @@config[:loglevel], progname: 'TelegramClient: %s | %s' % [jid, session[:login]] )
+        @resource  = @@config[:tdlib][:client][:device_model] || 'zhabogram'
         @xmpp      = xmpp
         @jid       = jid
         @session   = session
@@ -270,7 +271,7 @@ class TelegramClient
             when TD::Types::UserStatus::Offline   then show, status = (Time.now.getutc.to_i-status.was_online.to_i<3600) ? :away : :xa, 
                                                                        DateTime.strptime((status.was_online+Time.now.getlocal(@session[:timezone]).utc_offset).to_s,'%s').strftime("Last seen at %H:%M %d/%m/%Y")
         end
-        return @xmpp.send_presence(@jid, id, type, show, status, nil, photo, immed) 
+        return @xmpp.send_presence(@jid, id, type, show, status, nil, photo, @resource, immed) 
     end
 
     ##  send outgoing message to telegram user  
diff --git a/inc/xmppcomponent.rb b/inc/xmppcomponent.rb
index 3fa3403..2a80530 100644
--- a/inc/xmppcomponent.rb
+++ b/inc/xmppcomponent.rb
@@ -94,10 +94,10 @@ class XMPPComponent
         @component.send(message)
     end
 
-    def send_presence(to, from=nil, type=nil, show=nil, status=nil, nickname=nil, photo=nil, immed=true)
+    def send_presence(to, from=nil, type=nil, show=nil, status=nil, nickname=nil, photo=nil, resource=nil, immed=true)
         @logger.info "Got presence :%s from %s to %s" % [type, from||@component.jid, to]
         presence = Jabber::Presence.new()
-        presence.from = from.nil? ? @component.jid : "%s@%s" % [from.to_s, @component.jid.to_s] # presence <from> 
+        presence.from = from.nil? ? @component.jid : "%s@%s%s" % [from.to_s, @component.jid.to_s, (resource ? "/"+resource : "")] # presence <from> 
         presence.to = to # presence <to>
         presence.type = type unless type.nil? # pres. type
         presence.show = show unless show.nil? # presence <show>