Any business that is into large-scale selling is also using telemarketing as a way to generate prospects in order to have a handful of people to present to and finally close a sale with. Large corporations nowadays have their own call center agents. Most of them are far away from the corporation that applied for the services of the call center.
More often than not, the client and business are in America while the call center is outside the US, mostly in English Speaking Countries in Asia. Some businesses hire freelancers while other avail of B2B TELEMARKETING services. This will surely lessen labor and operational expenses thus raking more profit for the company.