Method and apparatus for echo compensator connection for telepho

Details Method and apparatus for echo compensator connection for telepho Method and apparatus for echo compensator connection for telepho

1996-05-02

1998-07-21

Zele, Krista

Telephonic communications

Subscriber line or transmission line interface

Network interface device

379406, 379219, 370286, H04M 900

Patent

active

057844550

ABSTRACT:
In a method and an apparatus for echo compensator connection for telephone connections in a telecommunication network that has a plurality of network groups (10), each network group has at least one remote node and a plurality of subscriber stations (14) that are connected to the remote node (12) via network group lines (18). The size of the network groups is selected such that echo compensation is not required given the maximum signal running times occurring within a respective network group (10). The remote nodes (12) of various network groups (10) are connected to one another by long-distance trunks (20). An echo compensator (22) is looped into the connection in the respective remote node (12) of the originating network group and of the destination network group given setup of a telephone connection between two network groups.

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patent: 5339356 (1994-08-01), Ishii
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patent: 5517563 (1996-05-01), Norell
patent: 5526414 (1996-06-01), Bedard et al.
patent: 5530724 (1996-06-01), Abrams et al.
patent: 5610909 (1997-03-01), Shaw

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