Person to Person messaging (P2P) is defined as two-way SMS or MMS messaging. For example, anonymous conversations between two users, surveys and group messaging are considered to be P2P messaging.
Application to Person, or A2P, messaging is one-way SMS to which recipients are not expected to reply. A2P messaging includes but is not limited to marketing messages, appointment reminders, notifications and pin codes. A2P messages can be subject to local country regulations. These restrictions can have delivery implications that customers should be aware of, such as message filtering by recipient carriers or delayed message delivery.
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