A2P

Application-to-peer messaging (A2P Messaging) is also known as Enterprise SMS-messaging.

While SMS is still a growing market, traditional SMS is becoming increasingly challenged by alternative messaging services such as Facebook Messenger, WhatsApp and Viber available on smart phones with data connections, therefore SMS reached its popularity as a person-to-person messaging, another type of SMS is growing fast: application-to-person (A2P) messaging. A2P is a type of SMS sent from a subscriber to an application or sent from an application to a subscriber. It is commonly used by organizations sending SMS from their systems to their customers (i.e: real-time notification, one-time passcode, 2-factor authentication.). According to research in 2011, A2P traffic is growing faster than P2P messaging traffic.