1. Yes, the NM-2V has built-in DSP resources for up to four calls (max voice port density with two 1st generation VICs). You cannot add further DSP chips to the NM-1V/2V, nor would you need to for what it does. You have one PSTN phone line, thus you can only make one call at a time. If you had a second line you could use the other FXO port for a second concurrent call.
2. If the phone line works then it will work with the router to make and receive calls. As Gregory said, just configure dial peers for what you need to do.
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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 ...