Approximately 60 phones are operational on one switch stack; well over 2000 phones are deployed at multiple sites. We have a number of CP-79xx phones that will not register confirmed in CallManager (CM).  To eliminate any DHCP problem IP addresses we...

I was given a WS-C3560E from a Eng program to configure and redeploy to a new test environment.  The switch has not been under maintenance for at least 2 years.  I got the switch configured and decided to upgrade the IOS From 12.2.44 to Cisco’s recom...