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Fujian Huanyutong Information Technology Co., Ltd
TJT-B monitoring extension
NegotiableUpdate on 01/03
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Overview
TJT-B monitoring extension
Product Details
·Each monitoring extension can be connected in parallel with a pair of TH-2 call extensions
·It can monitor the extension call on this channel, with realistic and clear sound, and adjustable volume
·You can interrupt the extension of this route
·You can cut off the call from this extension
·Specializing in prisons, monitoring and controlling visitation calls.
