I briefly describe my scenario. I have a voice gateway in which are linked some IP phones. Then this router is connected to a SIP proxy that forward the calls to an IP to IP Gateway wich converte the SIP in H323 protocol to transport voice to internet.
Now when I try to call an softphone on my PC from an IP phone behind the voice gateway I don't heard anything and the call goes down.
Seeing the SIP debug I noticed that the IP to IP gateway is not able to create a rtp link because it doesn't know the ip address of Voice gateway.
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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
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 ...