G430 Gateway DSP used for conferencing

[m50258]

HI,

We have SIP phones (9641G) registering to a Session Manager and a CM (on an HP server) configured as a feature server for the phones. We also have a G430 gateway registered to the CM for PSTN access. When we attempt a 3-party ad-hoc conference call, the SIP phone attempting to "join" the 3 parties displays the message "conference creation failed". When we sniff the traffic, we see that the 3 SIP phones have establshed a media session to the G430 gateway before we even press the "join" feature on the SIP phone. We are wondering if the DSPs on the G430 gateway can "mix" the traffic for the conference call or if we are trying something that will never work. Can anyone confirm if what we are trying should work and if not how can we support ad-hoc conferencing in our scenario? Thanks.

[mskinner]

Conference calls between SIP endpoints are supported and would use the TDM bus on the G430, providing everything is administered properly. If everything is administered properly and the conference calls continue to fail, a repair ticket with the TSO needs to be initiated.

[beaud]

Thanks for the reply. Do you have any suggestions or documentation for us to ensure we are configured properly. We have been unsuccessfull in finding supporting documents. Any hints appreciated.

Thanks