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A2P (Application-to-Person) messaging is the process by which messages are sent from an application, usually a web-based platform, to a mobile user. Messages that do not originate from a mobile device with a SIM card are regarded as A2P messages (excluding only Call Me messages).
Popular A2P examples include critical alerts, automatic online booking confirmations, marketing efforts and real-time notifications.
A2P messaging begins when an application triggers a message based on a specific event or action. This could be a transaction confirmation, a marketing message, or an alert notification.
The message is then routed to an SMS gateway, which serves as an intermediary between the application and the Mobile Service Provider.
The formatted message is delivered to the recipient’s mobile phone through the Mobile Service Provider’s network.
Once the message is received, the recipient’s phone displays it to the user. This could be a simple text message, a multimedia message, or a notification from a messaging app.
The process involved in sending an A2P SMS message is very similar to that of sending a P2P (person-to-person) SMS message. The key difference between the two is that the SMS message is now being sent from an application rather than from a mobile phone.