(Today, tens of thousands of end users around the world are communicating using new IP networks based on Cisco videoconferencing networking products and technologies. The 3500 product is a multimedia interactive platform based on H.323 technology, which is compatible with the latest protocol standards such as H.320, SIP and H.324M. The Cisco 3500 multi-service platform integrates IP-centric conference control, media management, gateway, data collaboration, intelligent gatekeeper and appointment scheduling functions into a comprehensive solution. This innovative architecture makes the 3500 the most scalable, flexible, functional and sustainable voice, video and data solution on the market. Using the Cisco video conferencing system, the transmission of voice, image and data can be truly flawless, and has good scalability and interoperability.)