Too Many Electronics

I've given up. I'm looking for a corded phone with a headset.

Without making the story long, I've finally decided that there are just too many electronic devices in my house (and other nearby houses) to get satisfactory results from cordless phones. My most recent purchase was a Uniden 5.8 GHz, but it is getting feedback from somewhere and although I can hear people well, they are having trouble hearing me. Actually our 2.4 GHz phones work better, but not with a headset for some reason.

Could be that one of the four or five wireless networks nearby, the TIVO, the Cingular forwarding device, or other people's cordless phones are the problem. But even if I could figure out which it was, assuming it's not just the way the Uniden phone is made, it's unlikely that I could solve it.

So, I'm looking to go low tech for my coaching calls -- back to a corded phone and a corded headset.

I love the convenience of all the wireless devices, but wouldn't it have been nice if someone had figured out how to do all of that without interference?