Telephonic communications – Subscriber line or transmission line interface – Network interface device
379402, 379406, 370 321, 370 32, H04M 1100
An end office of a telephone system in which the end office is operated based on a zero loss plan which requires that the line side equipment be exclusive of any means for introducing loss into the receive paths established in the line side equipment for the subscriber locations served by the end office switch.
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Hofsass Jeffery A.
Saint-Surin Jacques M.
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