ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,457,253, issued on Oct. 28, was assigned to BEIJING XIAOMI MOBILE SOFTWARE Co. LTD. (Beijing).

"Call processing method and apparatus, storage medium, and electronic" was invented by Shilong Pei (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "A call processing method includes: receiving, in response to determining a voice over Internet protocol (VOIP) call needs to be initiated through a first application on a terminal, a call state query request message sent by the first application, where the call state query request message is used to request querying whether the terminal is engaged in a telephone call; and always sending, to the first applica...