1. Signal Processing: This telephone voice module is a voice signal processor for telephone systems, enabling voice signal input, processing, and output. 2. Suitable Line: Typically used with an RJ11 interface to connect to the phone line, supporting voice communication for phone line access. 3. Multifunction: Common functions include auto-answer, voice messaging, call waiting, call transfer, etc., greatly simplifying telephone system operation and management. 4. Working Principle: Samples, codecs, and performs other signal processing on the voice signal from the telephone system, then outputs it as an audible voice signal. 5. Multiple Applications: Can be used in home phones, office phones, hotel phones, public phones, etc., effectively improving the intelligence and convenience of the telephone system. 6. PC Material: Offers good stability and durability, maintaining good performance over time. Made with environmentally friendly PC material, providing good flame retardancy, corrosion resistance, and impact resistance.