Trunk groups are used for outgoing calls, and aren't needed for incoming. If the lines are used bidirecttional, you will have trunk groups mainly for the purpose of outgoing in an ordered mannet to prevent glare.
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...