Most call centers are primarily inbound customer support. While this beefs up their number of callers and drives lots of revenue it is a unique skill set. This skill set in not transferable to outbound calling in any way.
In fact it is hard to get an inbound clerk to morph into an outbound hunter. They fight having to do the much more intense outbound lead generation. Now you want the same person (that handled your credit card issue so badly) to make a cold call to the president of a major company?
We only do outbound calling.