What multi-channel online chat to put on the site for support?

Question

Chats

I am making a website for an organization that will provide free help to people in some life situations. Naturally, there is no budget at all, everything is on a voluntary basis.
So. One way to communicate is online chat through the site. Only now I want to do this without the help of various services with online chats.
Is there a ready-made and simple script for online chat with an operator on the site? It is necessary that the user simply goes to a certain page on the site, where there will be a full-page chat, where communication with the operator will take place. The operator needs to be able to conduct a dialogue with several users at once, who opened the chat. And it would be ideal if he can also do this from the browser (the operator will sit on a budget computer with Ubuntu).

Answer 1

Try Venyoo . It also works on the machine, collects the applications itself and even calls back the clients itself, VERY convenient.