Voice signal processing method and device and communication system

The embodiment of the invention provides a voice signal processing method and a device and a communication system. In the method, a reset frame is inserted between adjacent played voice segments, the reset frame is used for resetting the decoder of a receiver equipment; the voice segments inserted in the reset frame are sent to the receiver equipment. The device comprises a processing module and a sending module, wherein, the processing module is used for inserting the reset frame between the adjacent played voice segments, the reset frame is used for resetting the decoder of the receiver equipment; the sending module is used for sending the voice segments inserted in the reset frame to the receiver equipment. For the embodiment of the invention, sharp noises can be avoided when the adjacent played voice segments are played because the reset frame is inserted between the adjacent played voice segments, , thereby the quality of the voice signal is increased.