hi we have the cup8.6, cucm 8.6 integrated to OCS for RCC.
All dashboard and system checks on cup are ticked ok. However on user MOC client we get the following error : 'cannot connect to the phone system, the call control server may be temporarily unavailble' .
we have trunk from ccm to cup, in cup we have ACL's for OCS and in cup we have cti gateway and ctigw application user with 8 cti cucm's.
User was on a cup 7, with ccm 7 to same ocs and all worked fine, issues after migration to ccm 8 . Move user back to ccm 7, i.e. register the phone to old ccm and using cup 7 all works fine again.
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The short answer is that you don't.... That isn't entirely true while at
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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 ...