1. CallManager is designed to allow any number of phones to communicate over any IP address structure. This means you can use any number of subnets on which you may place phones.
2. There aren't really any IPsec issues, other than the delay that can be experienced over the Internet. No QoS = potential problems. I've done many setups where folks have used IP Phones over IPsec without trouble. Just keep in mind that the Internet isn't QoS capable, unless you pay someone for it :)
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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 ...