[cisco-voip] Quick Question on PVDM2 Theoretical Limit For Conferencing

[Ryan Ratliff]

There is a hard limit on the number of conference participants and it is based on the hardware platform hosting the conference.
http://www.cisco.com/en/US/docs/ios/voice/command/reference/vr_m1.html#wp1404791

For a PVDM2 the default is 8 parties per conference, but as of 12.4(15)T a parameter was added to bump this up to 16 for g.729 or 32 for g.711.
http://www.cisco.com/en/US/docs/ios/voice/command/reference/vr_m1.html#wp1404791

The kicker is these resources are not allocated dynamically like they are for software resources so bumping up the max number per conference will limit the number of total conferences available for use.

-Ryan

On Jan 27, 2010, at 2:07 PM, Rhodium wrote:

Hi all,

Have a 2811 and need to deck it out with PVDMs to setup a h/w conference bridge (g.729a).

Is there a theoretical hardware limit on ad hoc conferencing with 2 PVDM2-64s as regards participants? Used the DSP calculator for 16 conferences and it stated 2 x PVDM2-64s.

I understand there is config to amend on the CCM service parameters and set the SCCP max sessions but if a user wanted to have for example 10 participants, would the DSP not be able to support it?

Regards,

Jason



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