Signal & Syntax · Messaging and A2P

What Is P2P Messaging?

P2P (person-to-person) messaging is SMS sent from one handset to another by a person. P2P traffic runs on consumer rate plans and low per-sender volumes.

Also calledperson-to-person messaging · P2P SMS

P2P Messaging in Practice

Operators set P2P prices for personal use. A2P traffic sent over P2P channels to cut cost is a grey route. Operator firewalls watch volume and content patterns to spot the difference. The distinction decides price, filtering and registration rules.

Related Terms

A2P messaging A2P (application-to-person) messaging is SMS sent by software to a mobile user. Grey route A grey route delivers A2P SMS through a channel priced for person-to-person traffic. SMS SMS (Short Message Service) is the text messaging service built into mobile networks. SMSC An SMSC (Short Message Service Center) stores and forwards SMS.

Read the Guide

Guide

How A2P SMS Reaches a Handset

The path from an API call to a delivery receipt. Read the guide →

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