External Use
Toll free numbers are most often used in connection with sales and marketing efforts--for example, taking orders or fielding customer inquiries. They are also commonly used for support functions such as technical help or assistance lines. Customers appreciate a toll free number, particularly during busy times when callers are placed on hold.

Internal Use
Toll free numbers can also be used internally. A toll free number gives traveling employees an easy and inexpensive way to call in to the office from any phone. In many cases, inbound calling is less expensive for the company than paying for a calling card call.