In my opinion, there are better debugs to shed light on this than 'debug cch323 all.' Chances are, the call is getting dropped due to one of three reasons:
a) The PBX is sending a disconnect.
b) There is a network issue causing the H225 or H245 TCP connections to timeout/drop
c) A media inactivity timer is popping.
First, make sure there isn't a media inactivity timer configured on the gateway under the 'gateway' section in the config.
Second, it may shed some light on root cause if you can see if a counter increments on 'sh h323 gateway cause' after the issue occurs. That will at least let you know the q.850 cause code for the drop, and point you in a certain direction.
Otherwise, or to be conclusive, run these debugs on both of the VGs:
debug h225 asn1
debug h245 asn1
debug ip tcp trans
debug isdn q931 <--- Assuming the VGs are running PRIs. Use debug vpm sig if these are CAS/analog circuits.
debug voip ccapi inout
Collect debugs in the following manner:
Router(config)# service sequence Router(config)# service timestamps debug datetime msec Router(config)# logging buffered 10000000 7 Router(config)# no logging con Router(config)# no logging mon Router(config)# voice iec syslog Router# term len 0 Router# sh logg
Note calling/called number for the call with the issue.
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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 ...