Avaya Definity

The amplified handset is useful for the hearing impaired as well as users that request a built-in adjustable volume control on their handset. This style amplified handset works with most Avaya phones (see compatibility below).

The amplified handset is useful for the hearing impaired as well as users that request a built-in adjustable volume control on their handset. This style amplified handset works with most Avaya phones (see compatibility below).