Multiplex communications – Pathfinding or routing – Through a circuit switch
Patent
1997-05-05
1999-12-28
Ton, Dang
Multiplex communications
Pathfinding or routing
Through a circuit switch
370524, 370420, H04L 1250, H04L 1228, H04L 1256, H04Q 1100
Patent
active
060090936
ABSTRACT:
In an apparatus and a method for interfacing a private exchange to an ISDN, the apparatus controls intralayer and interlayer entity communications to interface the private exchange to the ISDN. The apparatus is disposed in a universal card slot of a subscriber shelf of the private exchange in the form of a card to accommodate an ISDN terminal in the private exchange or connect the private exchange to an ISDN public network, thereby enabling voice and data communications.
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Stallings, ISDN & Broadband ISDN with Frame Relay & ATM, pp. 122-159;201-215; and 226-247, 1995.
Bushnell Esq. Robert E.
Samsung Electronics Co,. Ltd.
Ton Dang
Vincent David R
LandOfFree
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