Call connection control method in exchange

Details Call connection control method in exchange Call connection control method in exchange

1998-03-17

2000-11-07

Smith, Creighton

Telephonic communications

Special services

Call diversion

379201, H04M 342

Patent

active

061447293

ABSTRACT:
Disclosed are an exchange which performs call connection control for subscribers in a plurality of areas having different toll numbers, and a method of controlling connection of calls in this exchange. A telephone number translation table is created in accordance with a telephone number structure comprising an internal toll number and internal local office numbers, wherein the internal toll number is a string of numerals shared by toll numbers in the plurality of areas, and the internal local office numbers are numbers obtained by adding a number, which is not shared by the toll numbers in the plurality of areas, onto the beginning of local office numbers that follow the unshared number. The exchange performs switching service control using the telephone number translation table.

REFERENCES:
patent: 5796813 (1998-08-01), Sonnenberg

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