You'll need to be more specific on what exactly the IOS version you were using (working and not), and what the problem is (what symptoms did you see). Also, what signaling type and what configuration is used? Depending on what is wrong, it might be necessary to capture some relevant debugs, but I can't say for sure yet.
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...