Integrating a Live Support/Chat System Into Drupal

Hi all,

I'm starting a new site that will be using a 3rd party live support system. I haven't select a vendor yet.

I've been looking at the various chat modules and it doesn't seem like any of them work with live support chatting -- where a user can initiate a chat and one of a number of "operators" can answer it.

I'm just wondering if anyone knows of any modules that do support this type of system?

And if not, do you think any of the current modules that might come close to the functionality of a live support system

And also, if any one can recommend a live support vendor .

Thank You,
Sam