Any fax number starting with the codes 800, 877, 888, or others is a toll-free fax number. An 800 fax number is similar to a toll-free phone number. The customer initiating the fax does not pay, instead, the recipient business pays for the communication. Fax has always been part of the business. Whether it’s a small, medium, or large business an etollfree fax number will make your customers believe you are available globally.