Wall Mount Kit For Avaya 9508, 9504, 9608, 9611, and 9620 Phones, 700383375 Compatible Contains all parts needed for converting Avaya 9504/9508/9608/9611/9620 desk phones into wall mounted phones. Conveniently install phones where there are no desks or other surfaces Non-OEM but built to the exact specifications of the OEM model