Macbook Pro disconnects!

Hello, I've had my mbp for about 6 months and I had no complaints until last week. Apparently my macbook pro is losing its wireless signal when my phone rings. First I tought my phone was a 2.4 Ghz and that was causing the interferance but it is not. Can someone please help me about this im almost 100% sure that the phone is causing the disconnects. I'm using an airport extreme and running 10.5.1 if that helps anyone.

Any help is appreciated.