I've got a very vexing issue. I converted a router over from MGCP to h.323. IOS Advanced IP Services 12.4-4(t). With MGCP there was never an issue with dropped calls. Ever since switching gateway over to h.323, any calls are dropped with alarming regularity within 5 minutes or less of call being established. I am using the VIC-2FXO-M1 as my gateway interface. I've been searching for information on this and have come up with nothing. Unfortunately, MGCP will not allow CallerID over MGCP using FXO at this time. I'm not sure what is causing this dropping of calls. Any ideas?
On another note, is it possible to setup a SIP trunk between CUCM to the router and still use the 79xx phones as SCCP? Not sure on that either. If it is something with h.323, that would be an alternative solution but I think unnecessary. The 79XX (type A) phones don't work as well using SIP unfortunately. Thanks for any information.
I changed the router config to act as a sip-server. Configured a SIP trunk in CUCM and pushed calls through that instead of h.323 gateway. Seems to have solved the issue. Still curious as to why that was happening. Any ideas?
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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
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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 ...