[Opalvoip-user] ContactUri Problem in Point-To-Point SIP Call

[Michael P. <mic...@my...>]

  

Dear All, 

we are using OpalVoip 3.12.9 to perform a direct sip call. In our case
we call from a 2N IP Vario outdoor sip station to our device running
OpalVoip. We have the problem, that the ContactUri of our OpalVoip is
wrong: Contact: "2000" . In this case the outdoor station sends the
ACK to 0.0.0.0, OpalVoip doesn´t receive the ACK and hangs up
after a while, see the attached log. 

We are setting up OpalCmdSetGeneralParameters and
OpalCmdSetProtocolParameters but no registration parameters. Is there
some way to fix this problem? 

 Thanks 

Michael Prader 

INVITE sip:2000@192.168.2.252 SIP/2.0
 Via: SIP/2.0/UDP 192.168.2.32:5060;rport;branch=z9hG4bK5394
 From: "2N Helios IP Vario" ;tag=22942
 To: 
 Call-ID: 13671
 CSeq: 20 INVITE
 Contact: 
 Content-Type: application/sdp
 Allow: REGISTER, INVITE, ACK, CANCEL, OPTIONS, BYE, INFO, NOTIFY
 Max-Forwards: 70
 User-Agent: 2N Helios IP Vario 2.11.1.20.4
 Content-Length: 572

 ......

 SIP/2.0 180 Ringing
 CSeq: 20 INVITE
 Via: SIP/2.0/UDP 192.168.2.32:5060;rport;branch=z9hG4bK5394
 From: "2N Helios IP Vario" ;tag=22942
 Call-ID: 13671
 To: "2000" ;tag=542dc84f-84f1-e411-9aa1-ac0dfe300001
 Contact: "2000" 
 Allow:
INVITE,ACK,OPTIONS,BYE,CANCEL,SUBSCRIBE,NOTIFY,REFER,MESSAGE,INFO,PING,PRACK
 Content-Length: 0

 SIP/2.0 200 OK
 CSeq: 20 INVITE
 Via: SIP/2.0/UDP 192.168.2.32:5060;rport;branch=z9hG4bK5394
 From: "2N Helios IP Vario" ;tag=22942
 Call-ID: 13671
 To: "2000" ;tag=542dc84f-84f1-e411-9aa1-ac0dfe300001
 CONTACT: \"2000\" 
 Allow:
INVITE,ACK,OPTIONS,BYE,CANCEL,SUBSCRIBE,NOTIFY,REFER,MESSAGE,INFO,PING,PRACK
 Content-Length: 179
 Content-Type: application/sdp 

 .... 

ACK sip:2000@0.0.0.0 SIP/2.0
 Via: SIP/2.0/UDP 192.168.2.32:5060;rport;branch=z9hG4bK27652
 From: "2N Helios IP Vario" ;tag=22942
 To: "2000" ;tag=542dc84f-84f1-e411-9aa1-ac0dfe300001
 Call-ID: 13671
 CSeq: 20 ACK
 Contact: 
 Allow: REGISTER, INVITE, ACK, CANCEL, OPTIONS, BYE, INFO, NOTIFY
 Max-Forwards: 70
 User-Agent: 2N Helios IP Vario 2.11.1.20.4
 Content-Length: 0 

....