K-Style Push-to-Talk Handset for Avaya Definity

Push-to-Talk (PTT) K-Style Handset Push-to-Talk (PTT) handsets allow users the ability to provide additional security in environments where background conversations must not be overheard on the telephone. This replacement handset is compatible with most Avaya phones (see compatibility below). Features Push-to-Talk Button Feature Available in Black Compatibility Avaya Partner MLS Series Phones Avaya Merlin Legend MLX Series Phones Avaya Definity 8100/8400 Series Phones