voice class h323 1 wasn't good enough to avoid Recovery on timer expiry
Hello, my pub and sub were down due to maintenance outage to the location, however I had another sub that took place. So, all the phones were successful registered to this sub. However during the outage we were not able to make inbound calls to any sites because the ISDN Recovery on timer expiry.Thus, I've applied these commands:
voice class h323 1
h225 timeout tcp establish 3
voice-class h323 1 - for all voip dial-peer
Now the funiest thing is: 13 of 14 sites worked fine after I applied these commands, one site I also had to change the preference in order to fix the timer expiry, however there was only one site that did not work at all. I was wondering to know if someone out there would be able to explain why these commands did not work in this specific site. Btw, the router is 2951 IOS 15.0(1r)M13 H.323 to CUCM 8.6.2, isdn switch-type primary-qsig in Germany.
Here is the debug I took when I faced this issue for that specific location:
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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 ...