I have a couple of 8961 phones that I am trying to get to conference. I can call one extension, hit the conference button and call the other extension. When I hit the conference softkey button to join the two calls I get an error that says "Unable to complete conference". I am not using CUCM, I just have a sip server and TFTP Server that manages the xml config files. Am I missing a setting in the xml file to allow conference calling?
To establish conference you will need a media server to mix the streams, with callmanager that media server can be either the CUCM server itself or DSPs on a voice gateway registered via SCCP to CUCM. If all you have is a TFTP server, then what controls the call processing in your environment? Are the phones registered to the CUCM TFTP server?
Do you have everything you need on Asterisk to provide conferencing? You may not find much help here on Asterisk as this is Cisco support forum, but I am sure there are plenty of Asterisk related forums out there.
Ive also seen this problem on a phone that was configured for only dual-line use in CUCME. Im not sure about Asterisk whether there is a setting for the phone endpoint and how many concurrent lines to provision for it.
The short answer is that you don't.... That isn't entirely true while at
the same time it kind of is, but for the most part you don't configure
the softkeys. You enable or disable them via TCL. Here is the long
answer. Be sure to read the whole thing or e...
Topology: IP Phone > Switches > Microsoft NPS setup to forward 802.1x
proxy to > ISE 2.1 patch 3 Authentication: EAP-TLS using Cisco MIC SANs
Phone Models 802.1X support? 802.1x flavor Addtl Comment EAP-MD5 EAP-TLS
Cisco 3905 Y Y N Cisco 6911 Y Y N Cisco ...
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