Application to Person SMS (A2P SMS) is a term used to describe an SMS message sent from a software application (run by an enterprise or business) to a person’s phone. Examples of A2P SMS messages are: receiving a text message with your account balance from your bank, or an appointment reminder from your doctor. Typically, this is a one-way only (traffic to the subscriber from the business); however, it can go both ways, if the “campaign’ or messaging program allows interactive responses from the mobile subscriber.
