CaHi,I have a problem with my Cisco 2821 call manager, we are getting busy tone on our normal land lines (Copper wires) when call from outside, and cant place a call from the office but the internal extensions are working fine. The problem solved by ...

I had a problem with my call manager 2821, when type sh flash or Dir the CLI get hanging & i have to close the CMD window & open a new telnet session. And after several tries i am getting telnet connection failed !! it seems the sessions was not bein...