System for automatically completing calls to mobile telephone su

Details System for automatically completing calls to mobile telephone su System for automatically completing calls to mobile telephone su

1994-10-05

1996-01-02

Bost, Dwayne D.

Telephonic communications

Having light wave or ultrasonic link for speech or paging...

Including fiber optic link within telephone network

455 121, 455 131, H04Q 738

Patent

active

054815924

ABSTRACT:
A system and method which can complete a call to a specific Inmarsat subscriber ship. When a call arrives at a gateway switch, a test is made to determine if the called ship is in the gateway's local database. If it is, then a current region code is retrieved from the database and substituted for the dialed code for call processing. A call is then placed to the ship. If the call can be completed, the call is processed normally. If the call cannot be completed because the ship cannot be located in the selected region, then the call is automatically retried to each of the other regions, in a predetermined order. The local database in the gateway switch will be updated whenever a call is completed whether the call was originated or terminated at the mobile terminal.

REFERENCES:
patent: 4737978 (1988-04-01), Burke et al.
patent: 5173933 (1992-12-01), Jabs et al.
patent: 5410728 (1995-04-01), Bertiger et al.

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