FIELD: information technologies.
SUBSTANCE: device contains a measuring unit and a unit, capable to connect the specified measuring unit with the separate pairs of lines connected to the telephone commutative server, and then with all lines of allocation, whether they are active or stand-by.
EFFECT: reliability and quality of an access network.
28 cl, 6 dwg
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Authors
Dates
2008-09-20—Published
2003-01-29—Filed