The T20 is a complete, dual-line telephone with an ergonomically designed, convertible headset. Includes all the features of the T10 single-line headset telephone, plus a handy call hold button and three-way conference calling.

Convertible Headset: Headset can be configured for over-the-head stability or over-the-ear convenience
Easy Installation: Connects to existing telephone jacks T20 Headset Telephone
Adjustable volume control
Increased Comfort: Reduce the neck, shoulder and upper back discomfort that is associated with traditional handset telephone use
dual-line telephone with headset
Cable connects to existing telephone jacks
Noise cancelling microphone for clear conversations in any environment
Mute Key
On-line indicator and headset stand included
Ringer sound adjustment
Three-way conference capability
Tone control
Flash key transfers calls or accesses call waiting feature
Redial
Hold with indicator