Communication channel reservation

Details Communication channel reservation Communication channel reservation

1988-11-30

1990-09-18

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 857, 3701101, H04L 522

Patent

active

049583433

ABSTRACT:
A call processing method and apparatus for maximizing the number of calls that are offered to terminals sharing a digital subscriber line while insuring that for every call offered, a channel of the digital subscriber line remains allocatable to at least one terminal addressed by the call for use in answering the call. The switching system reserves a channel of the digital subscriber line in response to an incoming call. This channel is reserved for a set of terminals that share the digital subscriber line and that are addressed by the incoming call. This reservation entitles one of the terminals to be allocated a channel to originate or answer calls.

REFERENCES:
patent: 3961139 (1976-06-01), Bowman et al.
patent: 4592048 (1986-05-01), Beckner et al.
patent: 4660220 (1987-04-01), Kraus
patent: 4791662 (1988-12-01), Ahnen et al.
patent: 4829513 (1989-05-01), Rosen
CCITT Recommendation I.430 (1985), "ISDN User-Network Interfaces: Layer 1 Recommendations," See Section 3.2, p. 142, and Section 4.2, p. 144, Oct. 1984.
5ESS.RTM. Switch ISDN Basic Rate Interface Specification 5E4 Generic Program, AT&T 5D5-900-301, Sep. 1985, pp. IV-34 through IV-63 and pp. V-3 through V-6.

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