US PATENT SUBCLASS 455 / 445-- .~.~ Call routing (e.g., to prevent backhaul, routing efficiency, least cost, or alternate routing)

US PATENT SUBCLASS 455 / 445
.~.~ Call routing (e.g., to prevent backhaul, routing efficiency, least cost, or alternate routing)

Current as of: June, 1999
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455 /	HD	TELECOMMUNICATIONS

403	DF	RADIOTELEPHONE SYSTEM {12}
422	DF	.~ Zoned or cellular telephone system {14}
445		.~.~ Call routing (e.g., to prevent backhaul, routing efficiency, least cost, or alternate routing)

DEFINITION

Classification: 455/445

Call routing (e.g., to prevent backhaul, routing efficiency, least cost, or alternate routing):

(under subclass 422) Subject matter involving the assignment of a communication path by which information is carried to its destination.

SEE OR SEARCH THIS CLASS, SUBCLASS:

560, for detail of a switching unit.

SEE OR SEARCH CLASS

370, Multiplex Communications,

216+, for alternate routing in the case of fault, subclass 238 for least cost or minimum delay routing, and subclasses 351+ for path finding or routing in a multiplex switching system.