The invention relates to a method and system for detecting a call fault, a storage medium and electronic equipment, the system comprises a call initiating end, a call receiving end communicating withthe call initiating end, and a voice processing device, and the call initiating end is configured to periodically perform voice communication with the call receiving end; wherein the call receiving end is configured to play output voice received from the call initiating end when performing voice call with the call initiating end; and the voice processing device is configured to acquire the outputvoice and acquire a voice waveform corresponding to the output voice, and the voice waveform is used for determining whether a call fault exists between the call initiating end and the call receivingend.