Cordless phones originally operated on 1.9 MHz, then 46-49 MHz, 900 MHz, 2.4 GHz, 5.8 GHz, and the current technology as of 2o12 is 1.9 GHz. 900 MHz phones were the first to transmit in digital, everything before then was analog only.
It depends on the type of phone, and where you use it. Some phones if they have a clear 'line of sight' between the handset and base can work up to half a mile apart.
A cordles phone's range depends upon the materials that the signal has to travel through between the base station and the actual receiver. If it is solid concrete or brick the range might only be a couple of meters. If it is simply air it could be ten times that distance.
Some responders have mentioned that a 5.8 MHz or 900MHz cordless phone won't cause the problem. Because your cordless phone is using the same frequency as your wireless connection. (Usually 2.4ghz) All you need is to get a phone with a different frequency
Due to its wavelength level...
A cordless phone?
Legally - not without a court order. Illegally - if you have an analogue cordless phone, anyone with a radio scanner can hear BOTH sides of the conversation if they know which frequency to monitor.
You can purchase a cordless phone battery at Best Buy, Amazon.com, ebay.com, www.batteries4less.com/contents/Static/cordless-phone-batteries.html, etc. There are many options.
Cordless
A cordless phone twin is set up by , plugging the base into the wall and the phone jack , one then can plug in the cordless phone twin into any outlet and ones phones will be set up.
Some popular US cordless phone systems include AT&T, Motorola, Panasonic and VTech. Others who make the cordless phone systems are Clarity and Uniden.
Target and Best Buy both sell cordless phone sets. You can also find cordless phone sets online on the Amazon website, as well as on the eBay website.
Because they walk while talking on the cordless phone and the wire comes in the middle.
You can add up to 5 handsets to this Verizon cordless phone system.
The Panasonic DECT 6.0 Digital 5-Handset Cordless Phone is great.