Hi, maybe there is in the list Nortel people or Nortel CS2K users that can 
confirm or explain this bug of the softswitch:

Sometimes (5% of outgoing calls) Nortel CS2K replies me to port 5061 instead 
of 5060. There is absolutelly no reason for that since the INVITE is 
correctly sent from port 5060 and includes a correct Via:


This is a real trace:

------------------
U 2008/06/19 12:51:18.703871 MY_PROXY_IP:5060 -> NORTEL_CS2K_IP:5060

 INVITE sip:[EMAIL PROTECTED] SIP/2.0
 Record-Route: <sip:MY_PROXY_IP;lr=on;ftag=as5fc7617f>
 Via: SIP/2.0/UDP MY_PROXY_IP;branch=z9hG4bK87ab.47b6f072.0
 Via: SIP/2.0/UDP
 192.168.1.203:5060;received=88.99.1.192;branch=z9hG4bK20b50ef9;rport=10000
 From:  <sip:[EMAIL PROTECTED]>;tag=as5fc7617f
 To: <sip:[EMAIL PROTECTED]>
 Contact: <sip:[EMAIL PROTECTED]:10000>
 Call-ID: [EMAIL PROTECTED]
 CSeq: 103 INVITE
 User-Agent: Ilimit - Asterisk PBX
 Max-Forwards: 69
 Date: Thu, 19 Jun 2008 10:45:03 GMT
 Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY
 Supported: replaces
 Content-Type: application/sdp
 Content-Length: 284
 X-Called-E164: +34666555444
 P-Asserted-Identity: <sip:[EMAIL PROTECTED]>
 
 v=0
 o=root 1468 1469 IN IP4 192.168.1.203
 s=session
 c=IN IP4 MY_PROXY_IP
 t=0 0
 m=audio 60884 RTP/AVP 8 18 101
 a=rtpmap:8 PCMA/8000
 a=rtpmap:18 G729/8000
 a=fmtp:18 annexb=no
 a=rtpmap:101 telephone-event/8000
 a=fmtp:101 0-16
 a=silenceSupp:off - - - -
 a=ptime:20
 
 
### NOTE that the reply is sent to port 5061:


U 2008/06/19 12:51:18.72 NORTEL_CS2K_IP:5060 -> MY_PROXY_IP:5061

 SIP/2.0 100 Trying
 From: <sip:[EMAIL PROTECTED]>;tag=as5fc7617f
 To: <sip:[EMAIL PROTECTED]>;tag=5ad3254683132008619125120
 Call-ID: [EMAIL PROTECTED]
 CSeq: 103 INVITE
 Allow: ACK,BYE,CANCEL,INVITE,OPTIONS,INFO,SUBSCRIBE,REFER,NOTIFY,PRACK
 Via: SIP/2.0/UDP MY_PROXY_IP;branch=z9hG4bK87ab.47b6f072.0
 Via: SIP/2.0/UDP
 192.168.1.203:5060;received=88.99.1.192;rport=10000;branch=z9hG4bK20b50ef9
 Contact: <sip:NORTEL_CS2K_IP:5060;transport=UDP>
 Content-Length: 0
---------------------------------------------------- 


Some Nortel people to talk with about this problem?



-- 
Iñaki Baz Castillo
[EMAIL PROTECTED]

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