Detecting method and detecting device for soundless call

The invention relates to a detecting method and a detecting device for a soundless call. The method comprises the following steps: obtaining a preset number to be dialed; sending an instruction for dialing the preset number to a test terminal; receiving a target sound signal output by a telephone receiver of the test terminal while detecting that the test terminal and the target terminal corresponding to the preset number are in a call state, and continuously receiving the target sound signal output by a sound source through a microphone of the target terminal; when the sound strength output by the telephone receiver of the test terminal is smaller than a first threshold value within preset time, outputting an alarm signal. Thus, the whole test process according to the scheme provided by the invention does not need working staff to precipitate, so that the labor resources are saved. Moreover, the detecting method can judge the sound strength of the target sound signal, so that the tested results are relatively accurate.