You can easily activate a chat function for your Ziber website. We also use this chat function in Ziber Team ourselves and we are happy to use it. It can also be a nice addition to your Ziber site.
Activate Zopim/Zendesk chat account
You can open a demo account at Zopim/Zendesk via this link . Zopim is the creator of this chat software. When you have activated the demo, you can easily enter your account code in Ziber Team at 'My website' > 'Zopim'.