I've got a head scratcher. I'm using CUCM version 6.x. A particular 7911 phone is having issues with extension mobility. When nobody is logged in, the phone has a single line with extension 6639. When a user logs into the phone using extension mobility, the phone reports that the login was successful but the DNs associated with the extension mobility device profile do not come down. The phone still displays as 6639 and calls to 6639 ring on the phone. If I look at the phone in CUCM, the login information within the Extension Mobility section indicates that a user is logged into the phone. I've tested several extension mobility device profiles on this phone and they all have this issue. I've logged into other 7911 phones with those same device profiles and everything worked fine. I've compared the phone configurations between this one phone and phones which do work and I cannot find any differences in configuration. I'm really at a loss to explain why this is happnening. Any ideas?
mmm, is there anything different when it comes to IP subnet on that phone compared to the ones that work??
that definitely sounds like the process on which CUCM pushes the EM config is either not being done properly or something is blocking the connection between the CUCM and the phone. from your description it sounds CUCM works fine since it does work on other phones.
a EM trace and a sniffer would definitely show if there is an issue on the communication.
Ideally, the Extension Mobility server is being run on a server (should be the publisher) but the phones register to another server (should be a subscriber).
If this is correct, it may be that you have replication issues between the servers as although the TFTP should be set to the publisher the actual phone configuration is still drawn as from the server which it registers to so without synchronisation between the databases occurring this will not be what you are seeing as it is likely you are only referencing the publisher at present to double check your phone registration etc.
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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 ...