Trunk-conditioning for reconfigurable T1 access to nodal services
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United States of America Patent
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Aug 26, 1997
Grant Date -
N/A
app pub date -
Sep 12, 1995
filing date -
Sep 12, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Dynamic reconfiguration of T1 access channels to various Nodal (network) services can be realized by applying carefully devised trunk-conditioning signals to disconnected channels to provide proper system responses and prevent billing errors as well as unwanted alarm conditions. Trunk-conditioning with specific signals in binary sequences are defined for Terminal lines and Private Branch Exchange ('PBX') lines for the popular signalling type of E&M, LS, GS and PLAR. A steady idle signal is recommended for Terminal line conditioning; and a short duration of idle signal followed by a steady busy signal for inter-switch applications (eg. PBX to 4ESS.TM.) while loss of connectivity exists. This technique can be used in implementing the RINA service function for services offered by AT&T and any similar service provider. The service function will allow for greater access flexibility and better utilization of access bandwidth as well as network services. It is a value added feature to Special Services (private lines), as well as other existing service offerings.
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