Manuals This page is dedicated to being a resource tool to the users of desktop phones. We will carry PDFs of user manuals, quick reference guides & data sheets for Avaya, Cisco, Mitel, Nortel, Polycom, and ShoreTel brand of phones. Avaya Manuals Cisco Manuals Mitel Manuals Nortel Manuals Polycom Manuals ShoreTel Manuals