Thanks for the info. The CP-7920 does not have any SIP Firmware. It uses the skinny protocol, or for Trixbox, the chan_sccp.
So, if I don't have SIP firmware, which all the Cisco phones don't, as well as several Linksys ones that work directly with access points in the network, will it work at all with 3CX? Is there a chan_sccp configuration, or any other type that someone has gotten working? I am using Cisco AIR-AP1231G-A-K9 access points, 3, within our building.
Let me know.
Thanks.