I added phone service from Charter the other day and it works just fine (saved us $70 bill every month from AT&T). I started having issues with our connectivity every time the phone rang however. I placed a service call and while I was on with them I ran a Speed Test to see if i lost all connectivity. However to my surprise everything was just fine. With a little nudge in the right direction from the tech about cordless phone interference. I started digging more.I got the specs on my D-Link Router and it was running @ 2.4 to 2.483 GHz. My primary set of phones is 5.8 GHz but low and behold the office phone was a 2.4 GHz model. For some reason it started causing interference randomly.
I would say I was pissed but since it involved a trip to BestBuy & ultimately CircuitCity I was ok with it.
Interestingly enough this is a much larger issue and the FCC has now dedicated a slice of spectrum to cordless phones based on a current European standard. DECT 6.0 is a newer standard that cordless phones are now running on. As you can see by the graphic below your network connections (via WiFi only) can be interfered with by 5.8 and 2.4 GHz cordless phones.

By the way I bought a GE only because it had a dedicated GOOG-411 button. Directory assistance beware, your business model is being hacked and turned upside down.

Oh yeah it turns out that my getting Charter phone service had nothing to do with the phone interfering. It was just a coincidence.
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So you can drop your land line entirely with the charter thing?
-M
Yep, only issue is if the power goes out the phone is down. But with all the cordless phones we all use now that is the case anyway. Cell phone is now the steady and reliable, lol.
I didn¡¦t agree with you first, but last paragraph makes sense for me.