视酷即时通讯

This is an original, stable and full-featured instant messaging software featuring:
1. High concurrency: The measured concurrent number is above 20w, and supports hundreds of millions of users in clustering.
2. High availability: the server does not need to restart for half a year, automatic load balancing
3. Full function: wx has all the functions, no, we still have
4. Private cloud: support privatization deployment and deep customization, not subject to people
5. High security: the communication protocol uses high-intensity encryption algorithm, and the chat record is not leaked.

Specific features are:
1. Address book, support friend verification or no verification, QR code, label grouping, black, my colleague, public number, multi-login, my mobile phone send a message to my computer, etc.
2. Single chat, support message receipt, burn after reading, display read, message do not disturb, set top, withdraw, video chat, search chat record, etc.
3. Group chat, support announcements, @group members, group sharing, group verification, group nickname, group management, number of readers, video conferences, etc., support 10,000 people
4. Messages, support long text, pictures, recordings, videos, business cards, locations, animations, files, red envelopes, screenshots, etc.
5. Privacy, delivery, read, burn, remote destruction, regular clearance, privacy groups, non-public group members, etc.