Telephonic communications – Telephone line or system combined with diverse electrical... – Remote indication over telephone line
Patent
1993-05-11
1995-02-28
Chan, Wing F.
Telephonic communications
Telephone line or system combined with diverse electrical...
Remote indication over telephone line
379107, H04M 1100
Patent
active
053944615
ABSTRACT:
An expanded telemetry feature protocol allowing the provision of additional transport capabilities: 1) switch alert of CPE or voice equipment, 2) activation of other switch capabilities, 3) a barge-in capability, and 4) a broadcast capability. A telemetry function identification is included in the protocol to define a plurality of telemetry applications. Other extensions to the protocol allow sequential broadcast of voice or data to a list of destinations, operation with an analog display station interface (ADSI) station, and subaddressing to specify particular destinations.
REFERENCES:
patent: 5189694 (1993-02-01), Garland
AT&T Corp.
Chan Wing F.
Ulrich Werner
Watland Ross T.
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