Which protocols are supported to secure audio streams within the 3CX Phone System?

The reason ZRTP and SRTP are the correct protocols for securing audio streams within the 3CX Phone System lies in their specific functions and the security features they provide.

ZRTP (Z Real-time Transport Protocol) is a key management protocol that is designed to establish secure communication for real-time audio and video streaming. It allows the endpoints to negotiate encryption parameters and generate encryption keys securely during the session establishment. This provides robust security against eavesdropping by ensuring that the media stream is encrypted.

SRTP (Secure Real-time Transport Protocol), on the other hand, enhances RTP (Real-time Transport Protocol) by providing encryption, message authentication, and replay protection. It is specifically tailored for streaming applications, making it suitable for voice over IP (VoIP) technologies like 3CX.

Together, ZRTP and SRTP ensure that audio streams are effectively secured against various threats, ensuring confidentiality and integrity during communication. This combination is widely recognized for providing a secure method for VoIP communications, which is crucial in protecting sensitive information transmitted over the network.

While TCP and UDP are transport layer protocols, they do not provide encryption or securing capabilities for audio streams. Similarly, while SIP (Session Initiation Protocol) is important for setting up and managing