Multiplex communications – Wide area network – Packet switching
Patent
1989-12-11
1991-04-30
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
3701101, H04J 324
Patent
active
050124668
ABSTRACT:
An initialization arrangement is disclosed that allows call services defined in service profiles stored in a switching system to be enabled for individual terminals in a multipoint configuration without requiring assignment of terminal endpoint identifiers or virtual channel identifiers at subscription time. The call services are enabled for a terminal when the terminal transmits two identifiers to the switching system, one identifier defining the terminal and the other identifier defining a service profile. The switching system includes the identifier of the service profile in broadcast messages to address terminals with features defined by that service profile. Two embodiments of the invention are disclosed, one applicable in a narrowband integrated service digital network (ISDN) and the other applicable in a broadband ISDN (BISDN).
REFERENCES:
patent: 4259549 (1981-03-01), Stehman
patent: 4567323 (1986-01-01), Lottes et al.
patent: 4720850 (1988-01-01), Oberlander et al.
patent: 4899373 (1990-02-01), Lee et al.
B. Bunner et al., "DMS.100: Switching Architecture for ISDN," Telesis vol. 13, No. 3, 1986, p. 19.
CCITT Recommendation Q.921 (1985) "ISDN User-Network Interface Data Link Layer Specification," see section 5.3, pp. 35-40.
CCITT Recommendation Q.931 (1985) "ISDN User-Network Interface Layer 3 Specification," see section 5.1.2.1, pp. 131-132.
CCITT Recommendation I.430 (1985) "ISDN User-Network Interfaces Layer 1 Recommendations," see section 3.2, p. 142, and section 4.2, p. 144.
CCITT Recommendation Q.932 (1988) "Generic Procedures for the Control of ISDN Supplementary Services," see Annex A, pp. 58-63.
Buhrke Rolfe E.
Dianda Robert B.
Katzenstein Leo R.
McClurkan Michael B.
Tsai John S.
AT&T Bell Laboratories
Marcelo Melvin
Olms Douglas W.
Watland R. T.
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