We are having some issues with conferencing and had a few questions...
It is my understanding that CME has a built-in software conferencing capability to conference 3 users without requiring DSP resources. This appears to work fine as long as all clients are using g711 for their codec. But as soon as we introduce a phone that crosses a dial-peer that has a default codec not g711, the conferences fail ("can't complete conference").
The 3 user conferencing (with a limit on the total number of conferences based on CME Hardware platform) works for us. But not being able to conference the remote users is an issue.
Does this mean that we must either convert the dial-peer to g711 or setup full HW based ad-hoc conferencing using DSP resources?
Is there any way to force the voip dial-peer to "transcode" to g711 only before participating in the software conference (we have limited DSP transcode resources available).
If we setup HW conferencing, it appears based on the DSP calculator that it requires 1 DSP per 8 g729a conference participants. Does this mean 8 non-g711 phones or 8 phones total?