МТ-subscription, pin-submit, web-subscription - Consumer enters MSISDN on mobile internet page or in app. A handshake MT SMS in sent to consumer. Consumer enters the PIN on mobile internet page or in app to purchase. Or consumer replies the handshake MT SMS with MO SMS to purchase.

1 Click Flow - Consumer enters MSISDN on mobile internet page or in app.

One click payment - Consumer authorizes the purchase via one-click on mobile internet page or in app. It's 1 time payment, is not of subscribes.