Method and system for avoiding missing call, electronic device, and storage medium

An electronic device, comprising a processor and a memory, wherein the processor is coupled to the memory;

• the memory is configured to store a program instruction and
• the processor is configured to read the program instruction stored in the memory, so as to implement the following method:
• establishing a call connection between a first SIM card of the electronic device and a network in response to first incoming call information that is sent by the network and that is received by the first SIM card of the electronic device or in response to outgoing call information that is sent by the first SIM card to the network;
• sending a network registration instruction to an auxiliary apparatus;
• receiving, from the auxiliary apparatus, second incoming call information that is sent by the network to a second SIM card of the electronic device;
• and
• displaying an incoming call interface based on the second incoming call information, wherein the second incoming call information is displayed on the incoming call interface.

A system for avoiding missing a call, wherein the system comprises a host apparatus and an auxiliary apparatus, wherein

• the host apparatus is configured to:
• establish a call connection between a first SIM card and a network in response to first incoming call information that is sent by the network and that is received by the first SIM card of the host apparatus or in response to outgoing call information that is sent by the first SIM card to the network;
• send a network registration instruction to an auxiliary apparatus;
• and
• display an incoming call interface based on second incoming call information sent by the auxiliary apparatus, wherein the second incoming call information is displayed on the incoming call interface;
• and
• the auxiliary apparatus is configured to:
• register, in response to the network registration instruction, with the network by using a modem (modem) in an idle SIM card slot on an auxiliary apparatus;
• receive second incoming call information that is sent by the network to a second SIM card of the host apparatus;
• and
• display an incoming call interface and play a ringtone in response to the second incoming call information, and send the second incoming call information to the host apparatus.