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TN753B Direct Inward Dialing Trunk The TN753B trunk card will provide users with up to 8-ports of direct inward dialing. These 8-ports can be used for wink-start and immediate-start DID Trunks. Features 8 Ports Tip and ring signal leads TN753B required to support Brazil Block Collect Call Includes Atlas 1-Year Warranty with Extended Warranty options available!
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🇺🇸 Ship from USA · On Agora since 2025
$52.88