P2A (Person-2-Application) Messaging
P2A (person-to-application) SMS is used to communicate with a user on behalf of an app. It is often referred to as Mobile Originated (MO).
P2A messaging is mostly used for different TV voting campaigns, competitions, SMS lottery campaigns, subscriptions, etc. With person-to-application SMS messaging, a person can easily interconnect with brands, companies, and service providers with text messaging giving a pervasive, fast, and secure route for client-business communications.