Patent Number: 9,432,525

Title: Methods and systems for top-up

Abstract: Methods and systems for top-up are provided. A representative top-up system includes an interface module that receives and transmits a phone number associated with a phone user's account; and a top-up gateway that receives and transmits the phone number from the interface module and requests for a telephone service company associated with the phone number to a home location register (HLR) look up service. The top-up gateway tops up phone minutes and/or balance of money of the phone user's account associated with the phone number based on the phone number, and requested telephone service company.

Inventors: Lu; Dat The (Duluth, GA)

Assignee:

International Classification: H04M 17/00 (20060101); H04M 17/02 (20060101); H04W 8/04 (20090101); H04W 4/24 (20090101); H04M 15/00 (20060101); H04W 8/18 (20090101)

Expiration Date: 2020-08-30 0:00:00