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I haven't tested a limit on that, but I have done two or three. The most important thing is to provide external power, as the first time I ever hooked one phone behind another, the excess power draw caused the 3550 switch to kill power to that port. I would recommend plugging in a hub or...

The Cisco IP Communicator was released on March 23 and can be downloaded from Cisco Connection Online if you have an active service contract. It emulates very closely a 7970 IP phone. Only problem I had with it is that we have auto-registration set up, and it auto-registered the phone without...

One suggestion I would make, that I have implemented for my users, is to create a 'Silent' ringtone that contains no audio data. This allows the user to selectively turn on and off ringing on individual lines without the need to change the setting at an administrative level.

I've found the tftp directory, made changes to the XML files on both callmanagers, restarted both systems and reset all my phones but I'm still stuck with the same set of ringtones. Why?

Download the IP Phone Services SDK from CCO. There's an ASP application included among the sample services to display a logo. Don't install it on your Call Manager server, you'll need another system with IIS.

Glen, We have a similar setup, and I think you might want to do something like this: switchport access vlan 4 switchport trunk encapsulation dot1q switchport trunk native vlan 2 switchport mode trunk switchport voice vlan 4 switchport priority extend cos 0 spanning-tree portfast It looks as...