IP Telephony and Phones

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Hi Team,Am facing an issue with Cisco 7921 IP phone when connecting to third party PoE switch ( Extreme ), the issue is phone is not even powering up.Can anyone help me with the solution or the reason Please note that the Phone boots normally when co...

Hello.. i have Cisco media convergence server(7800). I want to setup this for my voip phones to get register. Pls help me how could i configure this.Any kind of help would be really appreciated.

Anukalp S by Level 1
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Hello,I'm having an issue where inbound calls just ring and ring and it doesn't show anything ringing the line in the router.  I've tested all the way to the end of the cable that's plugged into the router out and in and it works to a test set.  The ...