Call method and terminal device

Patent metadata

Field	Value
Publication number	US-11985581-B2
Application number	US-201817312798-A
Country	US
Kind code	B2
Filing date	Dec 11, 2018
Priority date	Dec 11, 2018
Publication date	May 14, 2024
Grant date	May 14, 2024

Abstract

This application provides a call method and a terminal device. The method includes: when roaming from a home public land mobile network (HPLMN) to a visited public land mobile network (VPLMN), a terminal device obtains a first emergency number list of the VPLMN, and the emergency number corresponds to at least one emergency service type; the terminal device obtains a first number, and when the first number is an emergency number in a second emergency number list of the HPLMN and the first number is not an emergency number in the first emergency number list, determines a second number based on the first number, where the second number is the emergency number in the first emergency number list, and the second number and the first number correspond to a same emergency service type; and the terminal device initiates an emergency call based on the second number.

First claim

What is claimed is:

1. A method, comprising:
when roaming from a home public land mobile network (HPLMN) to a visited public land mobile network (VPLMN), obtaining, by a terminal device, a first emergency number list of the VPLMN, wherein the first emergency number list comprises at least one emergency number, each emergency number in the first emergency number list is an emergency number configured for use in the VPLMN, and the at least one emergency number corresponds to at least one emergency service type;
obtaining, by the terminal device, a first number;
in response to the first number being comprised in a second emergency number list of the HPLMN and the first number not being comprised in the first emergency number list, determining a second number based on the first number, wherein the second number is comprised in the first emergency number list, and the second number and the first number correspond to a same emergency service type, each emergency number in the second emergency number list is an emergency number configured for use in the HPLMN, and initiating, by the terminal device, an emergency call based on the second number; and
in response to the first number being comprised in the second emergency number list and the first number also being comprised in the first emergency number list, performing the following:
displaying a first emergency service type corresponding to the first number in the first emergency number list and a second emergency service type corresponding to the first number in the second emergency number list;
in response to obtaining an instruction for making a call based on the second emergency service type, determining, by the terminal device, the second number based on the first number, and initiating, by the terminal device, an emergency call based on the second number; and
in response to obtaining an instruction for making a call based on the first emergency service type, initiating, by the terminal device, the emergency call based on the first number.

2. The method according to claim 1 , wherein determining, by the terminal device, the second number based on the first number comprises:
in response to uniquely determining, from the first emergency number list based on at least one emergency service type corresponding to the first number in the second emergency number list, an emergency number that corresponds to a same or partially same emergency service type to be the at least one emergency service type corresponding to the first number, using, by the terminal device, the determined emergency number as the second number.

3. The method according to claim 1 , wherein determining, by the terminal device, the second number based on the first number comprises:
in response to determining M emergency numbers from the first emergency number list based on at least one emergency service type corresponding to the first number in the second emergency number list, determining, by the terminal device, the second number from the M emergency numbers, wherein M is an integer greater than 1, and for each of the M emergency numbers, an emergency service type corresponding to the respective emergency number in the first emergency number list is the same as or partially the same as the at least one emergency service type corresponding to the first number in the second emergency number list.

4. The method according to claim 3 , wherein determining, by the terminal device, the second number from the M emergency numbers comprises:
displaying, by the terminal device, the M emergency numbers and emergency service types of the M emergency numbers, and determining the second number according to a received number selection instruction, wherein the number selection instruction is used to select an emergency number from the M emergency numbers as the second number.

5. The method according to claim 3 , wherein determining, by the terminal device, the second number from the M emergency numbers comprises:
converting, by the terminal device, the M emergency numbers and emergency service types of the M emergency numbers into a voice to be audio played, and determining the second number according to a received number selection instruction, wherein the number selection instruction is used to select an emergency number from the M emergency numbers as the second number.

6. The method according to claim 1 , further comprising:
in response to the first number not being comprised in the second emergency number list and the first number being comprised in the first emergency number list, initiating the emergency call based on the first number.

7. The method according to claim 1 , wherein the first emergency number list is obtained from a globalization parameter configuration file stored in the terminal device that is mapped to an identifier of the VPLMN.

8. A terminal device, comprising:
a memory, configured to store a computer program; and
at least one processor coupled to the memory, wherein the at least one processor is configured to obtain the computer program stored in the memory, and to perform, based on the computer program, the following operations:
when the terminal device roams from a home public land mobile network (HPLMN) to a visited public land mobile network (VPLMN), obtaining a first emergency number list of the VPLMN, wherein the first emergency number list comprises at least one emergency number, each emergency number in the first emergency number list is an emergency number configured for use in the VPLMN, and the at least one emergency number corresponds to at least one emergency service type;
obtaining a first number;
in response to the first number being comprised in a second emergency number list of the HPLMN and the first number not being comprised in the first emergency number list, determining a second number based on the first number, wherein the second number is comprised in the first emergency number list, each emergency number in the second emergency number list is an emergency number configured for use in the HPLMN, and the second number and the first number correspond to a same emergency service type, and initiating an emergency call based on the second number; and
in response to the first number being comprised in the second emergency number list and the first number also being comprised in the first emergency number list, performing the following:
displaying a first emergency service type corresponding to the first number in the first emergency number list and a second emergency service type corresponding to the first number in the second emergency number list;
in response to obtaining an instruction for making a call based on the second emergency service type, determining the second number based on the first number, and initiating, by the terminal device, an emergency call based on the second number; and
in response to obtaining an instruction for making a call based on the first emergency service type, initiating the emergency call based on the first number.

9. The terminal device according to claim 8 , wherein the at least one processor is configured to perform, based on the computer program, the following operations:
in response to an emergency number that corresponds to a same or partially same emergency service type as at least one emergency service type corresponding to the first number being uniquely determined from the first emergency number list based on the at least one emergency service type corresponding to the first number in the second emergency number list, use the determined emergency number as the second number.

10. The terminal device according to claim 8 , wherein the at least one processor is configured to perform, based on the computer program, the

Assignees

• Huawei Tech Co Ltd

Inventors

• Zhang Qi
• Ma Yanbin
• Chen Minghui
• Luo Fei
• Xie Dong

Classifications

• H04W4/90 Primary

  Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS] · CPC title

• H04W8/08

  Mobility data transfer · CPC title

• H04W4/02

  Services making use of location information · CPC title