Have a client that is using SIP trunks from CBeyond. System was installed about a year ago and SIP trunks have been working fine since then. Out of the blue the SIP connection went down, and the trunks will no longer register with Cbeyond. This is an IPO500V2 running 7.0. No IPO config changes, no network infrastructure changes, and Cbeyond insist that there have been no network/configuration changes on there end. In working with Cbeyond support they are pointing to the Contact field in the SIP registration request as the source of the problem. Below is a Registration request from Monitor with the "Problem" highlighted. I am unable to find a way to replace "Unknown" with the appropriate information. The "contact" field in the "Sip Credentials" tab of the SIP line only seems to effect a SIP INVITE request when an outbound call is made, but has no effect on the registration request. Anyone have any insight, or experienced a similar issue. Thanks.
53454mS SIP Reg/Opt Tx: 17
REGISTER sip:sipconnect.den0.cbeyond.net SIP/2.0
Via: SIP/2.0/UDP 64.207.40.114:5060;rport;branch=z9hG4bK694e454f5c2c4e5efd65354566707f11
From: <sip:3034076540@sipconnect.den0.cbeyond.net>;tag=24dc4e5857eca77f
To: <sip:3034076540@sipconnect.den0.cbeyond.net>
Call-ID: 2def9e75eac40e34bd53d8d93deeed0a@64.207.40.114
CSeq: 1189284541 REGISTER
[highlight #FCE94F]Contact: "Unknown" <sip:3034076540@64.207.40.114:5060;transport=udp>[/highlight]
Expires: 3600
Max-Forwards: 70
User-Agent: IP Office 7.0 (23)
Supported: timer
Content-Length: 0
53454mS SIP Tx: UDP 10.28.29.236:5060 -> 69.198.37.1:5060
REGISTER sip:sipconnect.den0.cbeyond.net SIP/2.0
Via: SIP/2.0/UDP 64.207.40.114:5060;rport;branch=z9hG4bK694e454f5c2c4e5efd65354566707f11
From: <sip:3034076540@sipconnect.den0.cbeyond.net>;tag=24dc4e5857eca77f
To: <sip:3034076540@sipconnect.den0.cbeyond.net>
Call-ID: 2def9e75eac40e34bd53d8d93deeed0a@64.207.40.114
CSeq: 1189284541 REGISTER
[highlight #FCE94F]Contact: "Unknown" <sip:3034076540@64.207.40.114:5060;transport=udp>[/highlight]
Expires: 3600
Max-Forwards: 70
User-Agent: IP Office 7.0 (23)
Supported: timer
Content-Length: 0
53521mS SIP Rx: UDP 69.198.37.1:5060 -> 10.28.29.236:5060
SIP/2.0 404 Not found
Via: SIP/2.0/UDP 64.207.40.114:49596;received=64.207.40.114;branch=z9hG4bK694e454f5c2c4e5efd65354566707f11;rport=54658
From: <sip:3034076540@sipconnect.den0.cbeyond.net>;tag=24dc4e5857eca77f
To: <sip:3034076540@sipconnect.den0.cbeyond.net>;tag=1091962527-1357333433120
Call-ID: 2def9e75eac40e34bd53d8d93deeed0a@64.207.40.114
CSeq: 1189284541 REGISTER
Content-Length: 0
53523mS SIP Reg/Opt Rx: 17
SIP/2.0 404 Not found
Via: SIP/2.0/UDP 64.207.40.114:49596;received=64.207.40.114;branch=z9hG4bK694e454f5c2c4e5efd65354566707f11;rport=54658
From: <sip:3034076540@sipconnect.den0.cbeyond.net>;tag=24dc4e5857eca77f
To: <sip:3034076540@sipconnect.den0.cbeyond.net>;tag=1091962527-1357333433120
Call-ID: 2def9e75eac40e34bd53d8d93deeed0a@64.207.40.114
CSeq: 1189284541 REGISTER
Content-Length: 0
53454mS SIP Reg/Opt Tx: 17
REGISTER sip:sipconnect.den0.cbeyond.net SIP/2.0
Via: SIP/2.0/UDP 64.207.40.114:5060;rport;branch=z9hG4bK694e454f5c2c4e5efd65354566707f11
From: <sip:3034076540@sipconnect.den0.cbeyond.net>;tag=24dc4e5857eca77f
To: <sip:3034076540@sipconnect.den0.cbeyond.net>
Call-ID: 2def9e75eac40e34bd53d8d93deeed0a@64.207.40.114
CSeq: 1189284541 REGISTER
[highlight #FCE94F]Contact: "Unknown" <sip:3034076540@64.207.40.114:5060;transport=udp>[/highlight]
Expires: 3600
Max-Forwards: 70
User-Agent: IP Office 7.0 (23)
Supported: timer
Content-Length: 0
53454mS SIP Tx: UDP 10.28.29.236:5060 -> 69.198.37.1:5060
REGISTER sip:sipconnect.den0.cbeyond.net SIP/2.0
Via: SIP/2.0/UDP 64.207.40.114:5060;rport;branch=z9hG4bK694e454f5c2c4e5efd65354566707f11
From: <sip:3034076540@sipconnect.den0.cbeyond.net>;tag=24dc4e5857eca77f
To: <sip:3034076540@sipconnect.den0.cbeyond.net>
Call-ID: 2def9e75eac40e34bd53d8d93deeed0a@64.207.40.114
CSeq: 1189284541 REGISTER
[highlight #FCE94F]Contact: "Unknown" <sip:3034076540@64.207.40.114:5060;transport=udp>[/highlight]
Expires: 3600
Max-Forwards: 70
User-Agent: IP Office 7.0 (23)
Supported: timer
Content-Length: 0
53521mS SIP Rx: UDP 69.198.37.1:5060 -> 10.28.29.236:5060
SIP/2.0 404 Not found
Via: SIP/2.0/UDP 64.207.40.114:49596;received=64.207.40.114;branch=z9hG4bK694e454f5c2c4e5efd65354566707f11;rport=54658
From: <sip:3034076540@sipconnect.den0.cbeyond.net>;tag=24dc4e5857eca77f
To: <sip:3034076540@sipconnect.den0.cbeyond.net>;tag=1091962527-1357333433120
Call-ID: 2def9e75eac40e34bd53d8d93deeed0a@64.207.40.114
CSeq: 1189284541 REGISTER
Content-Length: 0
53523mS SIP Reg/Opt Rx: 17
SIP/2.0 404 Not found
Via: SIP/2.0/UDP 64.207.40.114:49596;received=64.207.40.114;branch=z9hG4bK694e454f5c2c4e5efd65354566707f11;rport=54658
From: <sip:3034076540@sipconnect.den0.cbeyond.net>;tag=24dc4e5857eca77f
To: <sip:3034076540@sipconnect.den0.cbeyond.net>;tag=1091962527-1357333433120
Call-ID: 2def9e75eac40e34bd53d8d93deeed0a@64.207.40.114
CSeq: 1189284541 REGISTER
Content-Length: 0
