When we try to call to one of the phone numbers, for example 0445XXX90 , all the sip INVITE messages have same number 0445XXXX80 but, we expect to see 0445XXX90. Only the TO: sip header contains correct number 0445XXX90.
While debugging sip messages in cisco 2921 , we see :
For example we call :
to number one , ends with 89 INVITE sip:firstname.lastname@example.org:5060;transport=udp SIP/2.0 To: <sip:email@example.com;user=phone>
two, ends with 90 INVITE sip:firstname.lastname@example.org:5060;transport=udp SIP/2.0 To: <sip:email@example.com;user=phone>
three, ends with 91 INVITE sip:firstname.lastname@example.org:5060;transport=udp SIP/2.0 To: <sip:email@example.com;user=phone>
In such case we cannot route messages correctly .
We need to route and trans-code such numbers into short numbers like (8000-8100) and route them to CUCM.
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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 ...