Re: what protocol are the ipphone and gw are working in SRST mod
The protocol used between the router in SRST mode is Skinny Client Control Protocol (SCCP). Remember that this is the only protocol that the Cisco IP Phones run. The router uses H.323 in regular VoIP but in SRST mode it is communicating to the phones. You need an IOS feature set on the router that supports SRST (and thus SCCP to the phones).
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...