i do some tests with a small CCME environment: Cisco 2611XM, 1* ISDN PRI (E1). So, nearly everthing is working realy fine, all outgoing calls are OK, all incoming calls from fixed lines are also working.
But i have a problem with incoming calls from mobiles (i tried different providers, all the same), after dialing i get a call conected signal, after a few seconds i got busy signal.
I´ve done some isdn q931/q921 and vtsp debugging and found some differences but i were not able to interpret them ...
When i call from mobile the router does not send a TX -> SETUP_ACK, instead a TX -> CALL_PROC is send.
Notice that 23 seconds after the connect ack, we get a disconnect coming in from the telco. I wanted to make sure they are not timing out on anything. It does not look like it is a timer popping, because I cannot think of any timer that goes off in 23 seconds..
You do not need to send a setup ack. Calls should still work without a setup ack, as long as you send a proceed soon enough (which in this case we are)..
You can ignore the VTSP debugs in this case.
I had a similar issue before.. Calls from only some cell phone providers were failing. We later found out that it was only providers that used older technologies (verizon for example) failed. GSM calls worked just fine.. We were never able to determine why the difference.. I belive it is something to do with their switching setup.
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 ...
This document describe how DST changes and how time changes are
implemented in DST. Daylight Saving Time (DST) is the practice of
setting the clocks forward 1 hour from standard time during the summer
months, and back again in the fall, in order to make b...