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:
Mar. 13, 2018
Filed:
Dec. 08, 2015
Huawei Device (Dongguan) Co., Ltd., Dongguan, CN;
Zixiang Xu, Beijing, CN;
Guangyuan Gao, Beijing, CN;
HUAWEI DEVICE (DONGGUAN) CO., LTD., Dongguan, CN;
Abstract
A call management method for a multi-subscriber identity module (SIM) multi-active terminal, where multiple user cards register with a centralized call management module of the multi-SIM multi-active terminal. The method includes, when a first user card is used for making a call or receiving a call, determining call statuses of the multiple user cards according to a connection list in the centralized call management module, where the connection list is used to record connection data of the multiple user cards; and when a second user card is in a conversation state, setting the first user card to a waiting state; or setting the first user card to a conversation state, and setting the second user card to a waiting state; or simultaneously setting the first user card and the second user card to a conversation state, to implement a conference call.