| Category : Electronics>Telephony>Phone Systems>TrunkAvaya TN753-R 8-Port Direct Inward Dial Trunk Circuit CardPrice: USD29.95"Avaya TN753 The Avaya TN753 is a Direct Inward Dial (DID) trunk circuit card. It has 8 ports used for immediate start and wink start. Each port has tip and ring signal leads. TN753 Features: T1 Trunk Card, 8 Ports per Card, Tip & Ring Signal Leads"Other products from Factory Outlet Store & GoGoTech Stores |