Crafty Syntax Live Help

Crafty Syntax Live Help (CSLH) is a live support solution that helps customer support with live help functionality that can be proactively pushed to or requested by the visitor. CSLH includes a large range of features to allow multiple operators, multiple departments and multiple languages to be used.
Other features include the ability to create your own questions, auto inviting visitors, referer tracking, page tracking, ability to view what the customer is typing as they type, multiple chat sessions, sound alert, leave a message if offline, push urls, quick responses, customizable graphics, and multiple operators. CSLH is free and progammed in PHP with Mysql for the datatabase.
Free desktop Live Client also available: http://starhostdesign.com/LC