CCM Unity Unity Express

[qni]

Planning to have centralized CCM 4.0 and Unity 4.03 but to reduce WAN traffic intending to have a Unity Express at each remote site.

Is this possible? Would I be able to direct remote offices phones to the Unity Express and all central IP Phones to Central Unity Server.

As I would be running G.729a codec over the WAN would toll-bypass calls originated from the central be able to leave messages on the remote Unity express?

Thanks

[Markus Schneider]

Yes. You could have a gateway with PSTN access at the remote office with a Unity Express module. This is especially helpful since it will work the same way even if the WAN is down (to the outside callers, at least--if you're talking about using SRST and having CUE registered to the central callmanager, then you'll loose MWI during the outage--but otherwise everything will work the same).

CUE does require G.711 so you either have to transcode at the remote gateway or allocate bandwidth for G711 across the WAN.

[vinhnguyen]

Hi Markus

I setup transcoder at the remote site and it is registered, however I am still getting busy signal when call forward.  Where do I set so call get transcoded before forwarding to Unity Express?  How do I troubleshoot to show that it is hitting the transcoder? 

Thanks