Cisco Nortel Integration.

[mrmhar]

HIIIIIIII
i am working with cisco Nortel integration, the integration as the following:
Succession Side:

1- SIP calls Routed to the NRS then to the gateway of cisco
2- cisco gateway is added to the NRS statically
3- the same zone is configured for the virtual trunks and IP phones

Cisco side:
1- sip dial peer has been created for nortel extensions (and the session target is the Node IP)
2- dial peer ras has been created to the gateway zone
3- cisco gateway is registered to the cisco gatekeeper
4- zone prefix of the cisco gateway is the cisco extensions

the call is working fine from both sides.

Now the question is::
for the media i am using from cisco side the Transcoder and from the Norte Side it uses the phone for the media
the scenario is working with G.711
but with G.729 it is not working



the question is how i can change the media tramenation point from Nortel side to use the media card or another media source ???????

or how to do this better than this scenario


thanks in advance