Interface arrangement for providing ISDN basic rate interface full channel service
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United States of America Patent
Stats
-
Feb 17, 1998
Grant Date -
N/A
app pub date -
Oct 17, 1995
filing date -
Jun 3, 1994
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Full channel service is obtained over a modified ISDN BRI interface by emulating at least one central office (CO) station terminal which provides access to a voice channel over a single digital subscriber line DSL for user station terminals whether or not they are ISDN BRI compatible. To this end, an interface is provided for the DSL that emulates an ISDN BRI CO station terminal and acts like a facility to user station terminals. More specifically, a plurality of CO station terminals are emulated on a single multi-point passive bus terminating the single DSL. Each of the emulated CO station terminals presents to the CO switching office the appearance of being a CO station terminal. The emulated CO station terminals are configured such that CO features are accessible. Information from the emulated CO station terminals is mapped into existing system structures where such structures are available and compatible with the information from the emulated terminal.
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