This document outlines the interfaces by which SMS Messages can be delivered and received over standard HTTP protocol.
Two interfaces are defined for sending Mobile Phone Terminated (MT) messages and for receiving Mobile Phone Originated (MO) messages.
Bulk or MobiPay?
If you talked to one of our MobiPay Account managers for Mobile Billing Messages in countries like South Africa, Kenya, Ghana, Greece, Australia or the UK, then you are probably looking for our MobiPay Platform API documentation.
Depending on which platform you are intending on using please refer to the correct documentation.