How do I enable call waiting on FXS ports on 2431 IADs? I tried several different configuration commands and they either do not apply to the chassis or do not seem to work. I am running IOS 12.4(24)T1. Are there SIP message constraints? The device receives secondary INVITE messages sent from the proxy on active calls and responds with 100 and 180 messages, but these do not translate to CW activity on the FXS ports.
Thanks for your reply. I had originally tried that command and assumed it did not work, since I did not observe the CW CAS, two wire treatment, or CIDCW transmission. However, I re-tested and issued a hookflash anyway and the line connected to the second call.
Now, my problem has changed. It appears that call waiting works (the ability to switch calls), but there is no CPE alerting. How do I get that to work?
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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
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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 ...