Can anybody shed any light on what port range the ip phones use for voice communication. I know the packets are sent via UDP but the ports used seems to be completely random and wondered if there was a pattern or a certain range that is used.
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...