Hello, thanks for the replies. I switched to g only, and haven't dropped wireless connection for 2 days.
The phones are both androids. One of the phones is the only device that never had an issue with the router.
I am in Allentown, PA, and have RCN cable internet, Motorola surfboard SB501 modem (I think).
There are cordless phones in the house.
I installed inSSIDer, but haven't figured out how to use it, yet. The Network tab is inactive. Is it because my desktop is not wireless? I will install it on a wireless laptop and see what happens.