Yes. Narrowed down the issue but not the fix.
Outbound call, carrier sends a set of re-invite message @ 12 minutes into the call which the UC just ignores...Never answers or ACKS at all - it's not even in the logs. But it's in the packet capture! 3 minutes later the call is dropped. I got these messages from wireshark captures at the wan port.
Here is my idea:
SIP invite sets Min-SE of 1800 seconds.
Response does include any message that implies that gateway will control re-invites, therefore they are the responsibility of the calling party (UAC), right?
It sends an invite for the same session which we ignore. We haven't hit the timer to send the gateway the message yet so we haven't...
Anyone concur?
-Aaron
Here is the initial invite:
INVITE sip:17035551212@204.255.255.228:5060 SIP/2.0
Via: SIP/2.0/UDP 204.255.253.58:5060;branch=z9hG4bKC79CD2
From: "Phillip Park" <4155551212>;tag=436084A4-21AE
To: <17035551212>
Date: Tue, 14 Dec 2010 20:36:57 GMT
Call-ID: BAB7DFB8-6F811E0-A5A8A0FB-CD34337C@204.255.253.58
Supported: 100rel,timer,resource-priority,replaces,sdp-anat
Min-SE: 1800
Cisco-Guid: 3060812702-0116920800-2778964219-3442750332
User-Agent: Cisco-SIPGateway/IOS-12.x
Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY, INFO, REGISTER
CSeq: 101 INVITE
Max-Forwards: 70
Timestamp: 1292359017
Contact: <4155551212>
Expires: 180
Allow-Events: telephone-event
Content-Type: application/sdp
Content-Disposition: session;handling=required
Content-Length: 226
v=0
o=CiscoSystemsSIP-GW-UserAgent 4476 1061 IN IP4 204.255.253.58
s=SIP Call
t=0 0
m=audio 17054 RTP/AVP 0 101
c=IN IP4 204.255.253.58
a=rtpmap:0 PCMU/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=ptime:20
Here is the acceptance:
SIP/2.0 200 OK
To: <170355512120>;tag=3aafb255
From: "Phillip Park"<4155551212>;tag=436084A4-21AE
Via: SIP/2.0/UDP 204.255.253.58:5060;branch=z9hG4bKC7B0
Call-ID: BAB7DFB8-6F811E0-A5A8A0FB-CD34337C@204.255.253.58
CSeq: 103 PRACK
Contact: <3CB4C_ERVAIFIZAQI8O_GAMTQGRQ7GFM4W_RQ>
Organization: MetaSwitch
Server: DC-SIP/2.0
Supported: 100rel, resource-priority
Allow-Events: message-summary, refer, dialog, line-seize, presence, call-info
Content-Length: 0
12-minutes later, here is the invite back.
INVITE sip:4155551212@204.255.253.58:5060 SIP/2.0
To: "Phillip Park"<4155551212>;tag=436084A4-21AE
From: <17035551212>;tag=3aafb255
Via: SIP/2.0/UDP 204.255.255.228:5060;branch=z9hG4bK-d87543-1a547d4f13b1da27481f-1-cHBmNWIyN2IwYmZkMGFmNDcyMWNlOQ..-d87543-
Call-ID: BAB7DFB8-6F811E0-A5A8A0FB-CD34337C@204.255.253.58
CSeq: 50543139 INVITE
Contact: <3CB4C_ERVAIFIZAQI8O_GAMTQGRQ7GFM4W_RQ>
Expires: 180
Max-Forwards: 69
Content-Type: application/sdp
Organization: MetaSwitch
Supported: 100rel, resource-priority
Allow-Events: message-summary, refer, dialog, line-seize, presence, call-info
Content-Length: 167
v=0
o=- 3868851470 3868875795 IN IP4 204.255.255.228
s=-
c=IN IP4 204.255.255.228
t=0 0
m=audio 44276 RTP/AVP 0 101
a=ptime:20
a=rtpmap:101 telephone-event/8000
