http://www.prisonbreakfic.com/News/useful-tips-for-buying-2-line-cordless-phones/ Just like single line phones, 2 line cordless phones come in a confusing array of choices. Here are some useful tips to help you make the right selection. Security: Cordless phones operate on different frequencies. The very first ones operated at 46/49 MHz. Second generation models used 900 MHz. From there the . Fri, 08 Jan 2010 02:11:40 UTC en