Call center solutions handle customer service; predictive dialing; product inquiries; order entry; financial transactions; product/technical support; pre and post sales and support and much more. Call Center solutions are part of the broad area of CRM that includes Sales Force Automation (Technology Enabled Selling), Customer Support Applications, Marketing Automation Applications, eCommerce Applications, Product Configuration Systems, CRM Data Analytics.
The links above list some of the Call Center vendors and suppliers.