Uploaded November 2025 | Updated September 2026, 1 hour ago

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Curious about the differences between SMS, MMS, RCS, and OTT messages? In this lesson, we break down the key types of messaging channels. We explain what they are, when to use each, and how they shape the way we communicate every day. Plus, learn how you can easily send and receive all these message types programmatically with Twilio's powerful Messaging API.

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Key Topics:
📱 The difference between SMS, MMS, RCS, and OTT messaging
🚀 Real-world examples of modern messaging channels
🧩 How developers can send messages across all channels
🔑 Setting up your Twilio account and first SMS

Learn more:
Messaging Channels Docs: twil.io/lo-channels

Chapters:
0:00 Intro
0:35 What is a message and how is it delivered?
1:10 Overview of messaging channels
1:30 SMS explained
1:55 MMS explained
2:15 RCS and enhanced messaging
2:37 What is OTT messaging?
3:05 Why multi-channel messaging matters
3:32 Meet users where they are
3:51 Using one API for all channels
4:06 Next steps and getting started with Twilio