The M7310 is a fully-featured telephone at the heart of a standard business communications system, designed for users with extensive calling and call handling requirements. In addition to 10 programmable line or feature buttons, 12 dual-function memory buttons provide quick access to 24 additional features or autodial numbers for frequently called customers, suppliers or accounts. A two-line by 16 character LCD Window and softkeys make the M7310 extremely easy to use. Built-in speakerphone.