- What is A2P SMS?
- What is P2P SMS?
- How can I determine if my traffic is A2P?
A2P refers to application to person messages (an app, alert, 2FA, etc.) and are generally related to a "transaction". The assumption is that an A2P SMS was generated via a software application.
P2P refers to person to person messages (a person sends a message to another person). The nature of this traffic would resemble a conversation or dialogue, rather than being related to any transaction.