AT&T 964 is a four-line intercom speakerphone with Caller ID, call waiting features and digital answering system. It is a full-featured telephone system, expandable into up to 12 station. Each 964 has its own private answering system with 25 minutes digital recording time. Hands-free duplex speakerphone minimizes "clipping" allowing you to speak and listen without using the handset. This telephone has 200 name/number Caller ID history.

Amazon.com Product Description The AT&T 964 is a four-line digital duplex speakerphone that also provides integrated intercom and an answering system. It can stand alone or function as part of an expandable system, with a long list of advanced features that are ideal for a small office or large home. Accommodating four telephone lines, the phone can connect 11 staff members via intercom, call transfer, and conferencing. It supports caller ID on all four lines, has two data ports, and displays a 200-name-and-number caller history on the multifunction LCD.

The speakerphone permits hands-free conversation. Handset features include speed dial, flash, redial, hold button, and hearing aid and headset compatibility. A 25-minute digital answering system has memo capability, remote access, and time and date stamp. The phone is backed by a one-year parts and labor warranty.