VideoPhone 2500

The VideoPhone 2500 was the first color videophone capable of transmitting over analog telephone lines. It utilized digital compression to reduce the bandwidth needed for full-motion video, transmitting at 19.2 or 16.8 kilobits per second over analog phone lines using a V.34 modem.1

A videophone is a device that allows for the simultaneous transmission and reception of both audio and video signals over telephone lines, enabling users to see each other while communicating. Early videophones, like AT&T's Picturephone, were developed in the mid-20th century but did not achieve market success. The VideoPhone 2500, introduced in 1992, represented a significant advancement in videophone technology, though AT&T eventually discontinued it due to low sales.12