would you please show me the documents about what are the requirements to have caller ID over SIP trunk? does SP need to support and pass caller ID or we can do something internally in CME to pass caller ID?
By default, passing a caller ID and name display to and from SIP phones is enabled. Scenarios include SIP-to-SIP, SIP-to-SCCP, SCCP-to-SIP, SIP-to-H.323 (trunk only), and H.323 (trunk only)-to-SIP is enabled.
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...