Hi guys,Hope you can help me, I have just been asked a question at the interview if wirelesses operates at half or full duplex and honestly I don't know if my answer was correct. Can someone tell me which one is correct and what's more important,why ...

Hello everyone, I'm trying to find an option in Call Manager to set up kind of a pin or access code on the Cisco IP Phone to prevent unauthorized usage . Any advice will be appreciated. Cheers

Hi guys,It appears I have a problem with my telephone device as calls are received however it is not ringing with a sound. The dnd button is not enabled.  Any ideas? Thank you

Hi ! Hope you guys know more than me about VoIP ! I'm having a problem with my ip phone model 7911, it was working fine but suddenly stopped. That is the output from the cme: ephone-77[76] Mac:001E.135C.BA11 TCP socket:[-1] activeLine:0 whisperLine:0...