This document discusses multimedia conferencing, including its introduction, types, benefits, challenges, and future. Multimedia conferencing allows people to interact in real-time using audio, video, text and images from different locations. The main types are audio conferencing, video conferencing, web conferencing and telepresence. Benefits include convenience, productivity, flexibility and cost savings, while challenges relate to technical issues, engagement and cultural barriers. The future of multimedia conferencing involves virtual reality, artificial intelligence, improved connectivity and enhanced collaboration tools.