SIP Call 500 Internal Server Error

[shaharshad]

Hi,

For a specific dialed / outgoing number call drops after 4 rings. I found this "500 Internal Server" error as i collect logs from Call manager.  

SIP/2.0 500 Internal Server Error
Via: SIP/2.0/TCP 172.16.8.16:5060;branch=z9hG4bK191c876ad3b6b
From: "MD" <sip:804@172.16.8.16>;tag=201459~562e307b-bd39-a55e-bb24-fb1bcd76d786-44919287
To: <sip:0395199888@10.227.93.18>;tag=11A0DD0-FE9
Date: Tue, 23 Aug 2016 09:03:48 GMT
Call-ID: 7f6bf780-7bc11174-170fc-100810ac@172.16.8.16
CSeq: 101 INVITE
Allow-Events: telephone-event
Server: Cisco-SIPGateway/IOS-15.2.4.M6
Reason: Q.850;cause=16
Content-Length: 0

possible solution? or do i need to collect debug info from our Cube too? can you please guide me through.

Thanks

[christoph.hable · Accepted solution]

Hi,

SIP messages from Cube would be more helpful for all readers :) The message from your ITSP is more interesting and related dial-peer config to identify root cause.

For proper trace collection on CUBE / IOS please read https://supportforums.cisco.com/document/62906/how-properly-and-safely-collect-debugs-ios-router  

and enable only debug ccsip messages.

BR,

Christoph

[OBTACUCMY]

Hello,

Did you ever found the solution or found out what causes the issue? Can you please share what causes your issue and how you got it fixed?

[AT2018]

Can you share how it solved? Thanks.