SIP is domain based like HTTP (Web), SMTP (E-Mail) and Jabber (IM/presence).

You need the phones to register with the same domain that
the sofia profile is configured to use.

The most painless way to do this is:

1) setup DNS for A and/or SRV for SIP to point at your box
   eg: sip.my.com
2) set the domain variable in the conf/vars.xml to this domain
   -<X-PRE-PROCESS cmd="set" data="domain=$${local_ip_v4}"/>
   +<X-PRE-PROCESS cmd="set" data="domain=sip.my.com"/>
3) When you configure the phone/soft phone, use sip.my.com
   as the domain you are registering to so for ext 1000
   you become sip:1000@sip.my.com.

Now you have a fully qualified unique sip url and all your
phones can chat etc.

Anthony Minessale II

FreeSWITCH http://www.freeswitch.org/
ClueCon http://www.cluecon.com/

AIM: anthm
MSN:anthony_minessale@hotmail.com
GTALK/JABBER/PAYPAL:anthony.minessale@gmail.com
IRC: irc.freenode.net #freeswitch

FreeSWITCH Developer Conference
sip:888@conference.freeswitch.org
iax:guest@conference.freeswitch.org/888
googletalk:conf+888@conference.freeswitch.org
pstn:213-799-1400

----- Original Message ----
From: Alois Komenda <alois.komenda@esk.fraunhofer.de>
To: freeswitch-dev@lists.freeswitch.org
Sent: Tuesday, December
 4, 2007 8:47:34 AM
Subject: [Freeswitch-dev] Update: Problem with sending Instant Messages

Yesterday, 12-03-2007, I wrote:

      Hello, 

      sending IM (SIP 
MESSAGE) from one user to another through Freeswitch does not work for 
me.
      I have traced 
the problem to this point now: the call of switch_core_hash_find() in 
sofia_glue_find_profile__() returns NULL.      
      Finally "Invalid 
Profile <IP of Freeswitch>" is diplayed on the console (among other data 
about the message).
      What is the 
problem here? 

After a small change to 
sofia_presence_chat_send(), sending messages 
worked.
The parameter given to sofia_glue_find_profile() was 
the variable host which contains an IP address. I changed it to the 
hardcoded value "default". Now sofia_glue_find_profile() returns a valid profile 
and messages can be sent.

What is the correct way to choose the profile 
name for an IM?

Best regards,

Alois