Zoho Docs has a built-in chat feature, which lets you discuss various topics, could be business related or personal, in real-time with users in multiple locations. With this feature you will be able to easily collaborate and exchange ideas and opinions so that the necessary actions or decisions can be taken quicker.
If you want communicate and discuss a certain topic with one single user you can do so through private chat, where messages can be exchanged between you and the individual you wish to chat with.
With Group Chat you can invite and add multiple users under one group and discuss topics pertaining to that group. You can add your friends, family members, colleagues, etc., as different groups to share and exchange views and ideas.