| TN753B Direct Inward Dialing Trunk |
 TN753B Direct Inward Dial Trunk Circuit Card Like New: Quantity This product is eligible for 2 Year Platinum Protection! TN753 Features 8-ports used for immediate-start and wink-start direct inward dialing (DID) trunks Each port has tip and ring signal leads TN753B required to support Brazil Block Collect Call Price: 55.00 |