This home/office plain paper Message Center fax features a built-in answering machine, high speed modem and full duplex speakerphone, and a space saving, compact design. It is capable of storing both fax and voice messages while you're out in Automatic Fax/Telephone switching lets you receive fax and voice calls on a single line. This model is both Call Waiting/Caller ID and Distinctive Ring Detection ready for customers subscribing to these local phone company services.