Yes, central CUCM registered phones failing back to a local router for SRST is a very common topology.
A little contrary to what other people have said on this thread - it is actually possible for people to use CUPC as they are (with phones registered to CME). Functionality is limited, as there is no telephony integration available (as CUPC will only control phones registered to CUCM, not CME). You would get:
-Presence (available/away etc as set in CUPC, 'in a meeting' if you have Exchange integration configured)
You would not get:
-CTI Features - popups on incoming calls, video/voice calling, dialing from Contacts list in Outlook or CUPC etc.
-'On the phone' status based on the CUCM phone, as that doesn't exist for these users
-Softphone mode would be a bad idea, as the user would have two lines on two different phone systems (CUCM for the CUPC softphone, and CME for their ip phone)
Obviously there's a lot of stuff lost there, but if it's just IM and Presence you want, and the CME users have LDAP accounts, then you can do it.
You would basically have to configure End Users on CUCM that match their LDAP users as you would for normal CUPC users, but not assign any CTI groups or associated devices.
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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 ...