Dear friends,
in my organization a new PBX system have been setup based on Elastix and SIP protocol.
Practically above the 80 % of our phones are Cisco including many different models. I think I can update most of their firmware to make them compatible with this new PBX but recently I have found 25 new units of 7921G Cisco IP Wireless Phone that I'd like to use ASAP but I don't know if its possible to update the firmware of this model to work in a SIP environment or if there is a plugin for Elastidx to support these phones.
Can you help me please?
