Private branch exchange system having an automatic optimal route

Details Private branch exchange system having an automatic optimal route Private branch exchange system having an automatic optimal route

1991-06-27

1994-08-09

Dwyer, James L.

Telephonic communications

Plural exchange network or interconnection

Interexchange signalling

379201, 379221, 379243, H04M 700, H04M 342, H04M 300

Patent

active

053373529

ABSTRACT:
A private branch exchange system includes a switch accommodating a plurality of tenants, each having a plurality of terminals, and a plurality of trunks coupled to the switch. The trunks are coupled to communication lines, and a plurality of routes coupling the private branch exchange system to a zone are formed via the communication lines. A memory stores, for each of the tenants, information indicating routes which can be used. A controller discriminates a tenant sending a call received via the switch and selects an optimal route from among the routes which can be used for a discriminated tenant by referring to the information stored in the memory, so that the call received is sent out to a corresponding one of the trunks which is connected to the optimal route.

REFERENCES:
patent: 4791665 (1988-12-01), Bogart et al.
patent: 4866763 (1989-09-01), Cooper et al.

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