Do Cisco 7811/7821 (3PCC) phones support more than 3-party conferencin

[davidchang]

I have one Cisco 7811 and one Cisco 7821, both connected to a FusionPBX (FreeSWITCH) system.

I tested 3-way conferencing, and it works fine. However, when I try to invite a fourth participant, only the Join softkey appears. When I press it, the call disconnects.

I tried enabling Programmable Softkeys and modified the Conferencing Key List to: endcall|1;conf|2;dnd|3
However, the Conf softkey does not appear during the conference.

Does this mean the Cisco 7811/7821 (3PCC) does not support conferencing with more than three participants?

[rasengot@cisco.com · Accepted solution]

7800 Series devices supports only 3 way conference. If you want more than 3, you must use bridged conference.

[Nithin Eluvathingal]

Call conferencing: 78XX phone supports a maximum of 3-way local conferencing.

2.12.0.0