1, enterprise internal address book.
2, real time communication
3, support for text, pictures, expressions, documents, voice, video, text messaging, E-mail and other communication methods.
4, support more than one person meeting, group communication, text and video voice conferencing support for 20 people online video voice, and the meeting record
5, related products preferred.
If you have your previous work result, Please bid.
If you don't have your product, don't bid.