SOUTHWESTERN BELL FF-2115BL Cordless Phone with Call Waiting Caller ID

900 MHz cordless telephones are not subject to the same range restrictions and interference as traditional 43/49 MHz (also known as 10 or 25 channel) telephones. 900 MHz telephones use a shorter signal, which is more capable of moving through small openings, thus reducing unwanted interference. The frequencies in this band are not affected by common household items, such as radios, baby monitors, and garage door openers.