IP Telephony and Phones

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I have a new CUCM cluster that I'm taking over for our California region and they are porting some numbers from AT&T to their Level 3 SIP trunk. I want to make sure that when the port happens that the new numbers are able to make calls outgoing and i...

I to all I'm new to the voip world and I'm trying to do labs for my pleasure but I have a little problem, I configured a 7832 with tftp, but as soon as you take the firmware (whatever it is) it doesn't register anymore and goes into continuous restar...

Firstly, CUCM As I'm sure everyone with a PSTN connected phone is aware SPAM callers and spoofing are pandemic these days.Within our org which has over 1000 DIDs we are getting an increasing number of complaints and...