UC520 is the same software as IOS 12.4(11)XW, so yes non-cisco SIP phones will work as well the SCCP ones. Note that depending on your location the product is not expected to ship before october so check with your reseller.
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...