Multiplex communications – Wide area network – Packet switching
Patent
1990-12-31
1992-10-27
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 681, H04J 312
Patent
active
051595940
ABSTRACT:
An apparatus for establishing a flexible rate interface (FRI) link on a standard ISDN link. The FRI link has its own signaling channel that is distinct from the signaling channel of the standard ISDN link, and the signaling channel of the FRI link is transparent to intervening switching systems. There are no geographical restrictions on a FRI link. The signaling channel of a FRI link may be established by designating a B channel of a standard link, by using a logical link of a D channel of a standard ISDN link, or by using standard ISDN user information transport facilities to communicate the signaling channel. FRI transport channels are B channels of a standard ISDN link or subchannels of a B channel.
REFERENCES:
patent: 4656623 (1987-04-01), Dalby, Jr.
patent: 4764919 (1988-08-01), Hunter et al.
patent: 4878216 (1989-10-01), Yunoki
patent: 4894822 (1990-01-01), Buhrke
patent: 4896319 (1990-01-01), Lidinsky
patent: 4899333 (1990-02-01), Roediger
patent: 4988209 (1991-01-01), Davidson et al.
patent: 5016243 (1991-05-01), Fite, Jr.
patent: 5023868 (1991-06-01), Davison et al.
patent: 5036535 (1991-07-01), Gechter et al.
patent: 5062103 (1991-10-01), Davidson et al.
J. C. Borum, "The 5ESS Switching System: Hardware Design", AT&T Technical Journal, vol. 64, No. 6 Part 2 (Jul.-Aug. 1985) pp. 1417-1437.
Bales Bruce M.
Crumpley Robert L.
North Sandra S.
Thieler Stephen M.
AT&T Bell Laboratories
Moran John C.
Olms Douglas W.
Samuel T.
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