What exactly does the sip-ua configuration provide... it provide the e.164 number registration with the registrar server? Do i need it in my case, where I need to send the calls to and receive calls from the Service Provider.
sip-ua configured a SIP User Agent. It's essentially used if you need to have the router act as a User Agent instead of a SIP proxy. So for an instance where you need registration. We do sandwich some global SIP configurations in here instead of 'voice service voip/sip' from time-to-time, though.
For your scenario, sip-ua is likely not necessary.
To put it in a simple answer: if your SP doesn't require registration, you likekly don't need to configure a sip-ua at all. You'll probably be okay with just a SIP dial-peer pointing to the destination.
If in doubt, and something isn't working as intended, run 'debug ccsip mess' and see what's happening between CME and the provider.
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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 ...