Incoming calls now working + SIP

Answered Question
Jan 13th, 2009

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?

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Correct Answer by Paolo Bevilacqua about 7 years 11 months ago

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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Paolo Bevilacqua Tue, 01/13/2009 - 04:50

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!

Correct Answer
Paolo Bevilacqua Tue, 01/13/2009 - 05:16

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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