DESC: Cordless 5.8GHz technology is calling! Packed with all the telephone essentials, the VTech VTIA5851 boasts everything from dual handsets, to 45 name and number Caller ID, Call Waiting, and a 20 name and number phone book. Search through 30 channels to find the clearest possible reception, and count on the three-mailbox digital answering system to take care of calls when you're away.