You need to get an updated license for that key. Upgrades between major versions (i.e. 2.x to 3.x) will require a new key programming file, updates within major versions don't so long as you don't also want to change your license limits or add features such as changing your TTS vendor and the like.
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...