This might seem like a really obvious thing to be able to change, but I have to admit I’ve not seen it mentioned anywhere else… In fact, I even saw one blog that stated you can’t change the ringtone on Communicator.
Well, that’s not the case, and in fact, it’s very easy to change the ringtone and many of the other sounds generated by Communicator.
In communicator, go into the Tools menu, then select Options. Click on Alerts and you get the following dialog:
Click configure sounds, and you’ll get the standard Windows sound configuration dialog:
Scroll down the list until you get to Microsoft Office Communicator 2007 R2, and you can now change the default sounds for pretty much any Wav file you like! Just select the sound you want to change then browse to an appropriate file.