Polycom Firmware matrix (Look at the polycom website) does not allow firmware higher than 2.3.2 (I think) to be loaded on the old 501 phones…So first confirm you are on a supported firmware release…

From: freeswitch-users-bounces@lists.freeswitch.org [mailto:freeswitch-users-bounces@lists.freeswitch.org] On Behalf Of Yehavi Bourvine
Sent: Sunday, November 29, 2009 8:48 AM
To: freeswitch-users
Subject: [Freeswitch-users] Polycom 501 conferencing with FreeSwitch

Hello,

  I am trying to set a Polycom 501 phone to do conferencing via the conference room on Freeswitch rather than on the phone (as on the phone it is limited to 3 participants only). Anyone had success with it?

I have on the Freeswitch  an extension named Conf.* which activates the conference application (it works with other brands). On the Polycom I tried to define

voIpProt.SIP.conference.address=sip:Conf0000@freeswitch-server.  The phone continues to create the conference locally and add the above Conf0000 to it, without  REFERing the parties to it. The first phone which called is left on hold...

Anyone managed to make this feature work? We use firmware 3.1.3.

                       Thanks! __Yehavi: