If you already having conversation in one chat, you can now add more participants into your chat. You can also suggests other new contact from your phonebook into the chat.
- On the Chats screen, tap (invite more)
- Tap a new contact that you would like suggest.
- You can choose whether to allow or deny the new contact request to join into the chat. These options shows when the participants that you suggested is not on the contacts list (meaning has never been added to a contact before).