US 12,301,768 B2Granted

System, method, and apparatus for transfer to VoIP call

AssigneeHuawei Technologies Co., Ltd.

InventorsWeilin Gong, Jingjing Yao, Yuwei Fan, Hai Lian, Yinyuan Jia

Life of this patent

Estimating the term…

Loading patent…

Abstract

This application discloses a call method and system, and a related apparatus. When a specific condition is met (for example, a callee fails to be paged), a network device forwards, to a VoIP server, a first call request to a target number, where the first call request is a call request initiated by a calling terminal to the target number, and the target number has been subscribed to a call forwarding service. Then the VoIP server parses a forwarding message from the network device to obtain a called number, searches, based on the called number, for the called terminal associated with the called number, and initiates a VoIP call to the called terminal, so that the callee in an out-of-service state (for example, there is no signal of an operator network or the callee is in an airplane mode) can still receive the call request from the caller.

Claims16

Dependent claims

A call method, applied to a first terminal device, wherein the first terminal device is installed with a first application serving as a VoIP client, and the method comprises:

detecting, by the first terminal device, a first operation;
sending, by the first terminal device, a first call request to a network device in response to the first operation, wherein the first call request is a call request initiated to a target number;
determining, by the first terminal device, that a target condition is met, the target condition comprising a failure to establish an initial call connection;
and
in response to the determining, hanging up, by the first terminal device, a call corresponding to the first call request to end the call, and sending a second call request to a VoIP server using the first application to start a separate call, wherein the second call request is a VoIP call request to the target number, and the second call request indicates the VoIP server to initiate a VoIP call to a second terminal device associated with the target number.

2 more elements

A terminal device, comprising a memory, a processor, a first application capable of serving as a VoIP client, and a computer program that is stored in the memory and that can be run on the processor, wherein when executing the computer program, the program enables the processor to:

detect a first operation;
send a first call request to a network device in response to the first operation, wherein the first call request is a call request initiated to a target number;
determine that a target condition is me, the target condition comprising a failure to establish an initial call connection t;
and
in response to the determining, hang up a call corresponding to the first call request to end the call, and send a second call request to a VoIP server using the first application to start a separate call, wherein the second call request is a VoIP call request to the target number, and the second call request indicates the VoIP server to initiate a VoIP call to a second terminal device associated with the target number.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/015,373Filed 23 Jul 2021
Priority: CN 202010762039.231 Jul 2020
Published: US 2023/0319189 A15 Oct 2023
Granted: 13 May 2025
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

H04M 7/0075
Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol , including next generation networks with a…: details…
H04L 65/1069
Session management: session establishment or de-establishment
H04W 4/16
Services specially adapted for wireless communication networks; Facilities therefor: communication-related supplementary services, e.g.…
H04W 8/20
Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data: transfer…