Digital added main line system

Details Digital added main line system Digital added main line system

H - Electricity

04

J

379/66, 344/77

H04J 3/04 (2006.01) H04J 99/00 (2009.01) H04J 3/18 (2006.01) H04M 11/06 (2006.01) H04Q 3/60 (2006.01) H04Q 11/04 (2006.01)

Patent

CA 1319769

13009-1 DIGITAL ADDED MAIN LINE SYSTEM ABSTRACT OF THE INVENTION A method and apparatus for transmitting and receiving multiple telephone transmission signals over a single twisted pair. An analog signal from a local switching station is converted to an 80 kbits/sec signal for transmission over a twisted pair. A remote terminal converts the 80 kbits/sec signal back into a conventional analog signal for use in conventional telephone, facsimile or other related equipment. WP50/13009/001.APP

614907

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