Have you been using Google Hangouts? Here is some updated information you need to know.
Google is integrating Google Hangouts and Chat.
They both have direct messages and group messages.
There is a difference. With direct messages, Google Hangouts and Chat can both be used and seen by the other. Group Messages do not do that. You have to use one or the other.
To place calls from Hangouts Chat, it opens Voice for G Suite . Hangouts Chat to cannot be used to send text messages.
To see Google’s information on this, visit https://support.google.com/a/answer/7651799?hl=en&fbclid=IwAR0ODWujQKk5vSUQE-WCyAgV1uFe3ayyS99WvzARmNfCRvA2icUO0Y7YgK4