Signal Processing: Telephone voice module is a kind of voice signal processor for telephone system, which can realize the input, processing and output of voice signal. Suitable Line: This telephone voice module usually uses for RJ11 interface to connect the telephone line, which can support the voice communication function of accessing the telephone line. Multifunction: The common functions of the telephone voice module include automatic answering, voice prompting, voice message, call waiting, call transfer, etc., which can greatly simplify the operation and management of the telephone system. Working Principle: The working principle of this telephone voice module is to sample, codec and other signal processing of the voice signal from the telephone system, and then output it as an audible voice signal. Multiple Applications: The telephone voice module can be used in home phones, office phones, hotel phones, public phones, etc. It can effectively improve the intelligence and convenience of the telephone system.