I met problem when FXO port on cisco router can`t get disconnect messages ,because of it cisco ip phone remains ringing. When dialing from ip phone ,it begins to call after 15-20 seconds.
I have the following topology:
PSTN gives phone connection through SIP to Grandstream and from grandstream by FXO to Router. I tried to make cusctom cptone,but it didn`t help me.
There is my voice port configuration :
voice-port 0/0/0 ring number 2 groundstart auto-tip delay 1 echo-cancel coverage 64 no vad timing hookflash-out 50 timing guard-out 3000 caller-id enable
voice-port 0/0/1 ring number 2 no battery-reversal groundstart auto-tip delay 1 signal groundStart timing hookflash-out 50 timing guard-out 3000 caller-id enable
Also i try to discover from Telco which cptone ,frequency,cadence, grandsteam h 502 use ,and got answer that Telco engineers don`t know ,they staied it by default.In grandstream datasheets i also couldn`t find any usefull information
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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