The AT & T 993 two lines with speakerphone call waiting caller ID can be used with one or two incoming telephone lines and features hands-free speakerphone. It is hearing aid compatible and can be used with a hands-free two-band 2.5mm headset (sold separately). This phone can be used on a tabletop or mounted on the wall and requires no power for basic operations, when a new 9V alkaline battery is installed. 993 has a data port for connecting your phone to another device, such as fax or modem. It has the capabilities, the caller ID, Caller ID with Call Waiting. Backlit display allows you to information on the screen, even in low light conditions. 993 also has a 24-number speed dial memory and the directory containing up to 100 additional numbers can save by name.