The system is based on the advanced IETF XMPP standard protocol and adopts a distributed, modular, and large-capacity pure software platform structure design, which fully considers the scalability of the system and the ability to extend future functions. The distributed system provides powerful expansion capabilities, and the modular structure enhances the system's flexible configuration. The system can be configured and deployed according to scale and performance requirements. The seamless connection between the cloud video and sound system and the instant messaging system is realized. On the same system platform, users can easily implement many functions such as online calling, instant messaging, instant meetings, and scheduled meetings. Complete network multimedia communication application solution.