What is the difference between SIP and RTP in VOIP communication?

SIP (Session Initiation Protocol) is a signaling protocol used to establish, modify, and terminate VOIP communication sessions. It sets up the call and defines the parameters of the communication, such as the participants and the media used.

RTP (Real-time Transport Protocol) is responsible for the actual transmission of voice data during a VOIP call. It handles the encoding, packetization, and delivery of audio and video streams between the participants.

In summary, SIP handles the signaling aspect of VOIP communication, while RTP manages the actual transmission of media data. Both protocols work together to enable smooth and reliable voice over IP communication.