- Install live chat and website module in your erp

- Navigate to Messaging menu create the Channel then Save record you will get the code related to chatter.

See screen cast: http://goo.gl/k1R8NZ

- Paste that code into your website

for more please check screen cast: http://goo.gl/jaVYMe

and save your website.

and send that live support url to your client.

You will get this screen: http://goo.gl/JQaa30
Thank you.