I'm looking to deploy UC500 and use a SIP trunking provider for off-net inbound/outbound calls.
I want to use G.729 on the SIP trunk, however I know that CUE only support G711. Is it possible to configure UC500 to transcode the G.729 SIP Trunk calls to G.711 for CUE and use G.729 for all the phones? Does this work in the scenario where an inbound SIP call uses G.729 to a phone but then translates to G.711 if the call is sent to voice mail?
If so how much DSP resource is provided on the UC500 and how many transcoding sessions are supported. I'm not planning on using any BRI or FXO ports, although we may use a couple of FXS ports.
Your input would be appreciated.