This module is highly configurable and very effective. We have combined it with a popup and a chatango group and it works very well. Not to mention, it's free.

Very disappointed with both the extension and lack of service. After installing sent the following as a service ticket:
Recently purchased Live Chat and have some problems.
1. When trying to edit 'Language' operation fails, 'content empty'
2. ie8 error in backend Live Chat:
Webpage error details (edited for space)

3. Chat doesn't work.
4. How is offline message configured?
5. Is there any module for chat, rather than menu item?
6. Is there a popup availability?

A prompt reply is appreciated.

Aside from the automated ticket reply, there was no response. Sent a subsequent request for refund which recieved a similar result.

Try the Chatango mod. It's highly ocnfigurable, and free.