As Tagir says, the 78xx SIP Phones can be registered ONLY in CME 10.0 using the fast track feature in which you register a phone model as if it were another phone model. They can't be registered in CME 9 or below.
CME 10.0 starts from Cisco IOS release 15.3(3)M. (See the following compatibility matrix)
I'm not able to access my old voice mail messages all of a sudden. The recording says something like 'the message is currently not available'. This has never happened before in all the years I have been using this system. I have t...
If you have 2 ISR routers, one acting as Failover, do we need to have both the same number of SRST licenses on the 2 routers?
No. You will only need the SRST licenses on the primary router. Because this feature...
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