The Polycom SoundPoint T 400 Headset in black is a telephone headset designed for use with various Polycom IP phone models, including the SoundPoint IP Phone Series and the Polycom ESI-48-Key IP Feature Phone and 48-Key Digital Feature Phones.
It is also compatible with a range of other phone models from brands such as 3Com, Aastra, Alcatel-Lucent, and Avaya/Lucent.
This headset is suitab…