The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 19, 2024
Filed:
Dec. 19, 2019
Huizhou Tcl Mobile Communication Co., Ltd., Guangdong, CN;
Wanying Wang, Guangdong, CN;
Chenli Gao, Guangdong, CN;
HuiZhou TCL Mobile Communication Co., Ltd., HuiZhou, CN;
Abstract
A calling method includes steps of sending a verification request to a verification server based on an IP multimedia subsystem (IMS) network when a terminal receives a call instruction, triggered by a communication identification from a user input, under a voice over long-term evolution (VoLTE) network or a voice over WIFI (VoWIFI) network, and the communication identification is not a communication identification supported by a current terminal; receiving a response message returned by the verification server based on the verification request; determining a type of the communication identification according to the response message; and according to the communication identification and the type of the communication identification, switching a network mode of an operator network to which the terminal is currently connected to a target network mode to initiate a call process.