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Community Member

SIP trunk via g729

Hi Voice Team,

I have a SIP integration between Cisco CUCM and Siemens Hipath.

I have the environment working properly via g711, but I wuld like to work with g279 and it is not working...

My environment is:

CUCM ---- Router (MPLS) ---          MPLS              --- Vanguard ----- Siemens

In Summary, the calls via g711 is ok, but g729 is not working...

I did a new region with device pool with g729 and I´m using a phone to test with the new device pool...

Siemens IP: 10.201.1.28

CUCM IP: 172.16.8.240

DN: 3001 (Siemens)

DN: 5157 (Cisco)

The trace file was attached.

Thanks all.  

4 REPLIES
Community Member

Re: SIP trunk via g729

What is your cucm version?

Sent from Cisco Technical Support iPhone App

Cisco Employee

Re: SIP trunk via g729

Jean,

your g729 call is not working because invite from siemens only advertising g711 codec in the invite message, also you dont have any tracscoder configure for it to work

to resolve it you have 2 options

# configure transcoder so that ....

      phone to transcoder : g729

      transcoder to sip trunk: g711

# configure on Siemens to advertise g729!!

thanks,

Vipul Jindal

Community Member

SIP trunk via g729

Thanks all.

The problem was in the Siemens PBX.

Community Member

Re: SIP trunk via g729

We did trunk with g729a on Siemens PBX.

Thanks all.

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