From callmanagers perspective Is it possible with a single h323 gateway defined in callmanager to allow outbound calls to our WAN (to external sites that have their own VOIP systems and h323 gateways) to use G.729, while ensuring inbound calls from the PSTN always use G711? I know how to configure the dial-peers on the gateway, but i'm looking for help on callmanager side I.e. if I use the default region in the device pool assigned to the h323 gateway, and default region uses system defaults (g711 internal g729 external) will calls out to the wan (whose dial-peers specify g729) use G729 without a transcoder? And also ensure that calls coming in from the PSTN use G711 (without having to invoke a transcoder for either of these? On the gateway side calls inbound from wan site send 7 digits and from the pstn I get four, so I'm able to do two different dial-peers destined for callmanager with the respective g711 or g729 defined.
With this same above setup, if I check the media termination point checkbox on h323 gateway page in ccm, does this "force" the call to use G711? I read a post that it does but want validation. I need the MTP as we need consultive transfer with wan sites.