There is one caveat where Unity does not use the last port available for MWI notification, and that is when you are integrating with an Avaya G3 using the Calista PBX Link and you are not using analog lamping. In this case, by default Unity uses port memory. With port memory on, Unity will attempt to use the highest numbered available port to light the lamp, and when it is time to turn off the lamp, instead of using the highest numbered available port to turn off the lamp, it will use the port that it orignally used to turn on the lamp.
I should note that by default even the Unity switch file that is set up for analog lamping uses port memory. This can be turned off, but it requires you to progam the ports used for lamping as VMI ports on the switch, and remove the from the VM hunt group. If a port is programmed as a VMI port on the switch, any other port programmed as a VMI port can turn off the lamp.
Port memory was designed for switches that require the same port that lit a lamp to be the same one to turn it off.
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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
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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 ...