Can't estabilish calls using g729

Unanswered Question
Feb 9th, 2008

I'm trying to establish connection between phones using g729 but unable to do so. g711u codec works just fine. In log I don't see any reason why it shouldn't establish it.

I have this problem too.
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nikolay-shopik Sat, 02/09/2008 - 03:52

yes I do.

voice class codec 1

codec preference 1 g729r8

codec preference 2 g711alaw

codec preference 3 g711ulaw

voice register pool 2

id mac 0000.0000.0000

number 1 dn 2

username XXX password XXX


voice register pool 4

id mac 001A.2FA6.F21E

number 1 dn 4

dtmf-relay sip-notify

voice-class codec 1

username XXX password XXX

pool 2 is initiator of connection I've removed voice-call codec to force use only g729

Paolo Bevilacqua Sat, 02/09/2008 - 16:31

On the trace you sent, cause code 65 is bearer capability not implemented, meaning codec mismatch.

Take a trace again with the proper voice-class set on both voice register pool, and send it here with the configuration.

nikolay-shopik Sun, 02/10/2008 - 02:28

Same reason cause=65, its running on: c2800nm-advipservicesk9-mz.124-15.T3.bin

Currently I have some problems with testing because NAT incorrectly translate sip headers(IOS bug), when have two outside interfaces.

I will continue testing on site tomorrow Monday.

nikolay-shopik Mon, 02/11/2008 - 05:56

I choice g729r8 codec alone on voice register pool. And its clear cisco don't like some settings of g729 from my third party phone.

nikolay-shopik Mon, 02/11/2008 - 11:17

yes both phones registered fine, I see no problem in registration when check logs. Tomorrow we will receive bunch of 7911 phones, hope this help isolate problem.


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