The Avaya 9508 Digital Deskphone is an indispensable Phone for Executives and Managers Small business executives who pass a great deal of time on the phone depend on advanced telephony features and depend on high quality, real-time voice communications, for the success of their parts. With a big, easy-to-read display, the 9508 delivers multiple feature keys, speed dials, and call logs to please the hardest executive.