- Corded phone
- single-line operation
The Centurion telephones series provides state-of-the-art information capabilities at the touch of a finger. This telephone series is perfect for office headquarters or home office. These telephones are fully modular, desk or wall mountable, and hearing aid compatible. Features include last number redial, pause, flash, tone pulse switchability, pulse-to-tone button, line-in-use indicator, visual ring indicator, ringer volume control, and a streamlined directory card. The 3691 also includes data port, a mute button, local hold with LED indication, and message waiting capability.