Call control method and device

A call control method, comprising:

• receiving, by a first electronic device, a first call from a second electronic device at a first time point, and displaying a first waiting-for-answering screen, wherein the first waiting-for-answering screen comprises an identifier corresponding to the second electronic device;
• receiving, by the first electronic device, a second call from a third electronic device at a second time point, wherein the first electronic device does not answer the first call at the second time point, and the second time point is later than the first time point;
• displaying, by the first electronic device, a second waiting-for-answering screen at a third time point when the first electronic device answers the first call, wherein the second waiting-for-answering screen comprises an identifier corresponding to the third electronic device, and the third time point is later than the second time point;
• answering, by the first electronic device, the second call in response to a first operation in the second waiting-for-answering screen;
• and
• performing, by the first electronic device and the third electronic device, first signaling exchange at a fourth time point, wherein the first signaling exchange comprises complete signaling exchange required to establish a call or comprises a part of signaling exchange required to establish a call;
• and
• the fourth time point is later than the third time point, duration between the fourth time point and the second time point is less than a first waiting threshold, and the first waiting threshold is determined according to a timeout threshold of the second call.

A call control system, comprising:

• a first electronic device, a second electronic device, and a third electronic device, wherein
• the first electronic device is configured to receive a first call from the second electronic device at a first time point, and display a first waiting-for-answering screen, wherein the first waiting-for-answering screen comprises an identifier corresponding to the second electronic device;
• the third electronic device is configured to send a second call to the first electronic device at a second time point, and display a dialing screen, wherein the first electronic device does not answer the first call at the second time point, and the second time point is later than the first time point;
• the first electronic device is further configured to answer the first call from the second electronic device at a third time point in response to a first operation in the first waiting-for-answering screen, and display a second waiting-for-answering screen, wherein the second waiting-for-answering screen comprises an identifier corresponding to the third electronic device, and the third time point is later than the second time point;
• the third electronic device is further configured to play a waiting-for-answering alert tone;
• the first electronic device is further configured to answer the second call in response to a second operation in the second waiting-for-answering screen;
• and
• the second electronic device is further configured to play a waiting alert tone.

An electronic device, comprising a memory configured to store program instructions and a processor configured to execute the program instructions, wherein when the program instructions are executed by the processor, the electronic device is triggered to perform the following operations:

• receiving, by a first electronic device, a first call from a second electronic device at a first time point, and displaying a first waiting-for-answering screen, wherein the first waiting-for-answering screen comprises an identifier corresponding to the second electronic device;
• receiving, by the first electronic device, a second call from a third electronic device at a second time point, wherein the first electronic device does not answer the first call at the second time point, and the second time point is later than the first time point;
• displaying, by the first electronic device, a second waiting-for-answering screen at a third time point when the first electronic device answers the first call, wherein the second waiting-for-answering screen comprises an identifier corresponding to the third electronic device, and the third time point is later than the second time point;
• answering, by the first electronic device, the second call in response to a first operation in the second waiting-for-answering screen;
• and
• performing, by the first electronic device and the third electronic device, first signaling exchange at a fourth time point, wherein the first signaling exchange comprises complete signaling exchange required to establish a call or comprises a part of signaling exchange required to establish a call;
• and
• the fourth time point is later than the third time point, duration between the fourth time point and the second time point is less than a first waiting threshold, and the first waiting threshold is determined according to a timeout threshold of the second call.