×

Telephone billing method

  • US 5,146,491 A
  • Filed: 08/08/1991
  • Issued: 09/08/1992
  • Est. Priority Date: 08/08/1991
  • Status: Expired due to Term
First Claim
Patent Images

1. A method of telephone billing comprising the steps of:

  • a. providing a toll-free number or local number to a customer to access a provider in a toll-free call or local call from an originating customer telephone number;

    b. receiving the originating customer telephone number in response to the toll-free call;

    c. converting the toll-free call to a billable call during or after the toll-free call; and

    d. billing the billable call to the originating customer telephone number.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×