hi there, I know that the CUCM software conference bridge can handl g711 calls. and in what circumstance we need to use the hardware conferecne bridge? the call from ISND will be converted as g711 before it send to the phones, and I don't see there is need to configure the Hardware conference bridge in normal day to day conference call.
also on same topic of DSP, if I have PVDM3-32 and PVDM-64 installed on same router and I would like to configure the Transcode on PVDM3-64, can I have the options to choose?
Hi Roy, there may be scenarios where you have some users configured to use G729. In this case when these users attempt to join or use the conference bridge resoruces, this will fail if you only have software conference bridge. hence it i always advisable to have dsp resources on the user's local router for hardware conference bridge.
Also, when configuring hardware and software conference bridge, ensure you do not assign them to the same MRG. Otherwise conferece that require hardware conf bridge will fail sometimes. This is because when they are assigned to the same MRG, callmanager selects them in a round robin fashion. So ensure you have seperate MRG for soft and hardware conf resources.
Yes you can mix different PVDM3 modules in the same chassis; however, Each DSP chip in the PVDM3 hardware has to be assigned to one task or another. For example. you cannot have the same DSP chip (of which there are two on the -32 or four on the -64 part) assigned to do conferencing and media termination simultaniously. Be sure that you use the DSP Calculator to understand what you need.
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