RTP, or Real-time Transport Protocol, is a network protocol used for delivering audio and video over the internet. It is commonly used in applications like VoIP (Voice over Internet Protocol) and video conferencing, where timely delivery of data is crucial for maintaining quality. RTP works by sending data packets in real-time, allowing for smooth playback and communication. RTP is often paired with RTCP (RTP Control Protocol), which monitors the quality of service and provides feedback on the transmission. Together, these protocols help ensure that multimedia content is delivered efficiently and with minimal delay, making them essential for modern communication technologies.