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New Member

Incoming calls now working + SIP

I have a UC520 and it runs SIP to the ISP. Outgoing calls works fine but not incoming. The configuration is posted in a .txt file. Anyone that has any suggestions to what it could be?

1 ACCEPTED SOLUTION

Accepted Solutions
Hall of Fame Super Gold

Re: Incoming calls now working + SIP

Means mismatched codec, see the ITSP doesn't use G.711 that is cisco default. Just put "codec G.711" under the incoming voip DP.

Hope this helps, please rate post if it does!

3 REPLIES
Hall of Fame Super Gold

Re: Incoming calls now working + SIP

Take "debug ccsip message" with "term mon", this will tell you the error. In most cases, mismatching numbers or codec.

Hope this helps, please rate post if it does!

New Member

Re: Incoming calls now working + SIP

I looked at the debug and I highlighted the reason. But I dont know what the fix is for that?

Hall of Fame Super Gold

Re: Incoming calls now working + SIP

Means mismatched codec, see the ITSP doesn't use G.711 that is cisco default. Just put "codec G.711" under the incoming voip DP.

Hope this helps, please rate post if it does!

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