I am having a strange issue where phones are unable to dial internal extensions it will work but most of the time it will not, it will get a fast busy signal  after dialing the extension then display on the phone unknown number then the buttons appe...

I have some phones where I added a secondary extension so users can see when the lobby phone is ringing. Problem is after adding 3 successfully when I add another user with a secondary extension they get a red X on the button. Could this be a licensi...

I have an odd issue, I have Auto Attendant setup to where a user can dial # and dial a 3 digit extension then # again to be transfered. This works for all of my phones except any Conference phone 7937G which I have 3 of them. Anyone ever seen this od...

I have been keeping the fax machine separate from the UC500 for all of my deployments but now I need to know if I can put a fax machine on a FXS port. I am configured with a PRI circuit.

I have a question can the UC560 be upgraded across a VPN connection?  Connecting to the UC560 via VPN then launching CCA3.2(1) or do I have to be on-site?