This is Dialog 4220 (Normal Lite)

This compact, cost-effective model offers all basic functions for office user communication needs. The Dialog 4220 Lite is specifically designed for users who want traditional telephone functions with good voice quality. It is a robust convenience phone well suited for visitor or service areas.

Digital telephone features:
1- 12 function keys with LEDs.
2- 5 programmable keys (can be labeled by the user).
3- Loud speaking function.
4- Programmable ringer, loudness and tone character.
5- Adjustable foot console.
6- Easy to mount on wall.
7- Hearing impaired support with amplification (+6dB).
8- Acoustic shock protection.