A Premium Rate SMS number is a number used for messaging that charges a premium price to the end user per sent SMS. A content or services provider can bill their users in regard to avail their services which is also known as “ Mobile Billing”.
Mainly SMS traffic can be generate by A2P and P2P
A2P- A SMS generated by any mobile application, website or portal.
P2P – A SMS generated from a mobile phone , as traditional SMS