The SCCP phones can call SIP or H323 with no problem. The router handles the signalling exchange. You use H323 or SIP dial-peers to route the calls to the correct end-points. Supplementary services is the major limitation between the disparate endpoints.
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...