Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Of trunk or long line
Patent
1995-10-11
1996-11-26
Chin, Wellington
Telephonic communications
Diagnostic testing, malfunction indication, or electrical...
Of trunk or long line
379 1, 379 6, 379 10, 379 12, 379 14, 379 15, 379 27, 379 28, 379 29, H04M 124, H04M 308, H04M 322
Patent
active
055793690
ABSTRACT:
The disclosed facility type determination technique ascertains whether or not a facility connection is solely digital. In the disclosed embodiments, this information is used to establish the rate at which data is coupled through the facility connection. More specifically, a predetermined test signal including a pseudorandom sequence of digital signals is transmitted through the facility or combination of facilities connecting a data source to a data destination after the connection between the source and destination is established. The received test signal is examined at the destination and the examination results are used to determine the rate at which data is subsequently transmitted between the data source and data destination. Advantageously, this technique does not restrict network facility management and can be employed in a variety of data communication applications.
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Feiner Alexander
Saltzberg Burton R.
Chin Wellington
Lucent Technologies - Inc.
Padnes David R.
Ross Otho B.
Shankar Vijay
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