Dialing method for effecting international call in intelligent cellular phone

• US 20030022697A1
• Filed: 07/26/2001
• Published: 01/30/2003
• Est. Priority Date: 07/19/2001
• Status: Active Grant

• Current Assignee: Beijing Zhigu Tech Company, Ltd.
• Original Assignee: Inventec Appliances Corporation (Inventec Corporation)
• Inventors: Chen, Kun-Huei, Wang, Yung-Feng
• Granted Patent: US 6,751,481 B2
• Time in Patent Office: Days
• US Class Current: 455/564
• CPC Class Codes: H04M 1/27485 Appending a prefix to or inserting a pause into a dialling sequence
• CPC Class Codes: H04M 1/724 User interfaces specially adapted for cordless or mobile telephones

Abstract

A dialing method for effecting international call in intelligent cellular phone utilizes a conversion table for storing system codes of a plurality of network companies worldwide and their international access codes and a phone book for storing a plurality of telephone numbers having international access codes respectively of different called parties in the database thereof to let the cellular phone be able to determine current location area while calling in international roaming and find the correct international access code from conversion table in accordance with system code received from an approximate network company for replacing international access code in telephone number searched from phone book.

Claims

1. A dialing method for effecting an international call in an intelligent cellular comprises a conversion table for storing system codes of a plurality of network companies worldwide and their international access codes and a phone book for storing a plurality of called parties'"'"' names and telephone numbers having international access codes respectively in a database thereof in order to let said cellular phone be able to recognize current location area in accordance with system code received from an approximate network company while calling in international roaming by selecting a telephone number from said phone book and find the corresponding international access code from said conversion table for replacing said international access code in said searched telephone number.

2. The method of claim 1, wherein said cellular phone receives input telephone number and dials it out directly while said cellular phone doesn'"'"'t enter into a phone book activation mode.

3. The method of claim 1, wherein said cellular phone shows a telephone number having said correct international access code on display of cellular phone before dialing.

4. The method of claim 1, wherein said cellular phone is a personal digital assistant (PDA) having a cellular phone functionality.