Multiplex communications – Wide area network – Packet switching
Patent
1993-11-05
1995-04-04
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
379 45, 379221, H04M 714
Patent
active
054043506
ABSTRACT:
An arrangement for selectively routing traffic to alternate destinations. If the network or switch for accessing the primary destination is inaccessible (i.e., out of service), as opposed to simply being busy, calls are routed to an alternate destination; however, if the primary destination is simply busy, calls are not routed to any alternate destination. This is useful, for example, for emergency (E911) calls which are routed to alternate emergency bureaus only if the network or switch for accessing the home bureau is out of service. Alternatively, the tandem switch can select an alternate toll carrier on the basis of allocation of traffic to different alternate toll carriers. The same general kind of arrangement can be used to route calls to an alternate toll carrier if the preferred toll carrier selected by the customer is not accessible.
REFERENCES:
patent: 3278692 (1963-08-01), Bean et al.
patent: 4943999 (1990-07-01), Ardon
patent: 4979164 (1990-12-01), Ardon
patent: 5016243 (1991-05-01), Fite, Jr.
patent: 5049873 (1991-09-01), Robins et al.
patent: 5212475 (1993-05-01), Thorne
patent: 5239570 (1993-08-01), Koster et al.
Bellcore Technical Reference, TR-NWT-000606, "LSSGR LATA Switching Systems Generic Requirements, Common Channel Signaling, Section 6.5", Issue 1, Nov. 1990.
DeVito Nicholas M.
Hagerman William E.
Moulos Ted
AT&T Corp.
Olms Douglas W.
Ulrich Werner
Vu Huy D.
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