I have phones starting from the old 05/40/60 to the 79x5 series and I didn't have any problem using RTPMRx and RTPMTx - in fact I'm using that for an application I just recently deployed and x5 phones are part of my test phones in my lab.
I'm using (or was using.. I have since upgraded but haven't done any RTP stuff) is 8.3.4SR2 so the second latest version. However, I'm unaware of any release where RTP wouldn't have worked (then again, it's not something I test for - but you can search the bugtool for such things)
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...