For the analog intercom products, digital voice encryption communication can be realized in the way of external encryption hand microphone. The RLSpeakTM solution is integrated into encryption hand microphone, users’ original speech is transmitted to intercom as analogue audio via interface of hand microphone after digitalized, code compressed, encrypted and modulated, then intercom processes encrypted audio as human speech and emitted, while the receiving end does the opposite process.

We can customize for different brands of analogue intercoms interface.