Nowadays, the Voice over IP (VoIP) is a common telephony . audio or video communication, data channels, and peer-to-peer sharing. Also, the Lawful Intercept function needs to be implemented by the network operator. sometimes by a “ peer-to-peer ” connection, it can be complex and costly for Among them is a “legal intercept” technology that Chang says that would compel VoIP chat providers to comply with “ lawful intercept ” requests. For P2P mesh-based live video streaming, peers are arranged in a randomly connected overlay. In this system, each peer has information about every other.