Our network has a main switch that branches off to switches that feed equipment in multiple locations in our building. We have a UC560 Connected to the main switch, any desk sets attached to that main switch work just fine. But, when we connect a des...

I'm looking for anyhelp I can get. I'm not looking for software, I'm trying to repair a config, and the UC560-T1E1-k9-factory-8.6.2.cfg is also corrupt.  I've looked at the 520, 540, 560 and the various versions. They all seem to be very different fr...

Our company used to sell AT&T small business phone systems.  The system we sold AT&T has since stopped supporting and selling the system. The system was IP based, we preferred to use PSTNs over SIPs We already have Cisco firewall and router experienc...