Arrangement for providing private-network line features on central-office-to-PBX trunks
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United States of America Patent
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-
Oct 20, 1998
Grant Date -
N/A
app pub date -
Jun 4, 1996
filing date -
Jun 4, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A telephone central office switch (103) provides Centrex features, including intercom dialing, on central-office-to-PBX (133, 134) trunks (123, 124) by using the 4-wire subscriber feature of the Lucent Technologies 5ESS.RTM. switch to administer trunk ports (113-114) that serve the central-office-to-PBX trunks as 4-wire telephone lines and then further administering those trunk ports for Centrex features. Those trunk ports, and optionally also some line ports (115-116), may be administratively assigned the private network numbering plan of respective PBXs so as to enable intercom dialing among those trunk ports, and between those trunk ports and the optional line ports.
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