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Maximum Number of Conference Bridge Participants?

Chin Jam
Level 1
Level 1

In our environment we have Cisco IOS Enhanced Conference Bridges configured in CUCM.  We use a 2911 router for our voice gateway which has 2 x PVDM3 DSP DIMM with 32 Channels installed.

 

In CUCM Service Parameters > Conference Clusterwide Parameters we have the following set:

Maximum ad-hoc = 16
Maximum MeetMe = 16

 

I have read that 'Cisco IOS Enhanced Conference' bridges support up to 8 participants on a single call. I also read that the PVDM3 cards support up to:

 

  • Up to 32 participants for G.711 conferences
    Up to 16 participants for G729/G729A/G.722 conferences

 

Our voice gateway supports both g711 and g729:

--------------------------------------------------------
Conferencing Oper State: ACTIVE - Cause Code: NONE
Active Call Manager: 10.10.7.11, Port Number: 2000
TCP Link Status: CONNECTED, Profile Identifier: 1
Reported Max Streams: 16, Reported Max OOS Streams: 0
Supported Codec: g729br8, Maximum Packetization Period: 60
Supported Codec: g729r8, Maximum Packetization Period: 60
Supported Codec: g729abr8, Maximum Packetization Period: 60
Supported Codec: g729ar8, Maximum Packetization Period: 60
Supported Codec: g711ulaw, Maximum Packetization Period: 30
Supported Codec: g711alaw, Maximum Packetization Period: 30
Supported Codec: rfc2833 dtmf, Maximum Packetization Period: 30
Supported Codec: rfc2833 pass-thru, Maximum Packetization Period: 30
Supported Codec: inband-dtmf to rfc2833 conversion, Maximum Packetization Period: 30
TLS : ENABLED
--------------------------------------------------------

My questions are:

 

  1. What is the maximum number of participants that can join a conference call?
  2. How many conferences can be active simultaneously?

 

Thanks and appreciate any insight.

2 Accepted Solutions

Accepted Solutions

Jaime Valencia
Cisco Employee
Cisco Employee