there is a customer who is little tight in budget. they have polycom 450, 550, and 330 IP phone. They like to purchase UC520. I am wondering if those phones are compatible with UC520, or if there is any documentation to have UC520 compatibility.
Cisco says that they only support cisco phones and if something doesn;t work with third-party, you're on your own.
This said, basic calls will certainly work, thing is all the features will be awkward to activate, and some won't work at all, at the end of the day it without cisco phones comes out quite a poor system and likely custome unsatisfied.
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...