Call routing interface for satellite communications user terminals

• US 6,396,818 B1
• Filed: 03/20/1998
• Issued: 05/28/2002
• Est. Priority Date: 03/20/1998
• Status: Expired due to Fees

• Current Assignee: Ericsson, Inc. (Telefonaktiebolaget LM Ericsson)
• Original Assignee: Ericsson, Inc. (Telefonaktiebolaget LM Ericsson)
• Inventors: Frank, Mara A., Kolev, Javor P., Lohr, Jonathan C.
• Primary Examiner(s): Chin, Wellington
• Assistant Examiner(s): PHAM, BRENDA H
• Application Number:
  US09/045,473
• Time in Patent Office: 1,530 Days
• Field of Search: 370/316,315,324,334,341,349 455/13.1,405,427,430,456,445
• US Class Current: 370/316
• CPC Class Codes: H04B 7/1856 for call routing

Abstract

A method and apparatus employing an improved user interface for satellite communications user terminals in satellite communications systems provides call routing information, in particular gateway selection information, during channel request portion of call initiation. In one approach, a symbol, for example a key on a keypad, is associated with gateway selection information, such as a country code and national destination code. When a user thereafter initiates a call by selecting the symbol and causing a subscriber number for a desired destination to be entered, the satellite communications user terminal automatically transmits the gateway selection information associated with the symbol during the channel request portion of call initiation. In another approach, some gateway selection information is selected as a default. Thereafter, the satellite communications user terminal automatically transmits the default gateway selection information, when appropriate, during the channel request portion of subsequent call initiations until the default is changed. User satisfaction with satellite communications user terminals is thereby improved.

Claims

1. A call routing interface method for satellite communications user terminals, comprising:

a) associating a multi-digit value with a single key at a satellite communications user terminal;

said value representing at least a portion of gateway selection information, said portion comprising at least one of the group consisting of country code, mobile country code, national destination code, and mobile network code;

b) thereafter, initiating, by a user, a call on a satellite communications system by selecting said key and thereafter selecting a subscriber number for a desired destination; and

c) thereafter transmitting, by said satellite communications user terminal, said value to a satellite so as to provide gateway selection information to a satellite communications system during the channel request portion of call initiation.

2. The method of claim 1 further comprising choosing a gateway to handle said call based on said value.

3. The method of claim 1 wherein said value includes a country code.

5. The method of claim 1 wherein said value includes a mobile country code and a mobile network code.

6. The method of claim 1 wherein said key is on a keypad associated with said satellite communications user terminal.

7. The method of claim 1 wherein said selecting of a subscriber number comprises manual entry of said subscriber number by a user on a keypad associated with said satellite communications user terminal.

8. The method of claim 1 wherein said satellite communications user terminal is adapted to also function in a terrestrial wireless communications system.

4. The method of claim wherein said value includes a country code and a national destination code.

9. A call routing interface method for satellite communications user terminals, comprising:

a) selecting, by a user, a destination country code from a plurality of country codes associated with a satellite communications system as a default;

b) transmitting said default as at least a portion of gateway selection information by said satellite communications user terminal to a satellite during all subsequent channel request portions of call initiations on said satellite communications system by said satellite communications user terminal, unless said default is overridden by entry of call-specific gateway selection information, until said default is changed by a user.

10. The method of claim 9 wherein said selecting of a default destination country code comprises manual entry of said default destination country code by a user on a keypad associated with said satellite communications user terminal.

11. The method of claim 9, wherein said satellite communications user terminal is adapted to also function in a terrestrial wireless communications system.

12. A call routing interface method for satellite communications user terminals, comprising:

a) selecting, by a user, a destination country code from a plurality of country codes associated with a satellite communications system and a national destination code from a plurality of national destination codes associated with said destination country code as a default;

b) transmitting said default as at least a portion of gateway selection information by said satellite communications user terminal to a satellite during all subsequent channel request portions of call initiations on said satellite communications system by said satellite communications user terminal, until said default is changed by a user.

13. A satellite communications user terminal, comprising

a) memory and a country code stored in said memory;

b) a key associated with said country code;

c) means for selecting a subscriber number;

d) a controller operatively connected to said memory and said key and said means for selecting said subscriber number, said controller adapted to generate gateway selection information by appending said country code to said subscriber number when, during a call initiation by a user, said key is activated by the user prior to selection of said subscriber number;

a transmitter operatively connected to said controller, said transmitter transmitting said gateway selection information to a satellite during the channel request portion of call initiation of a communications session.