SMS vs. Other Technologies

• SMS: Sends plain text only. It does not support media (like photos, videos, or audio).
• MMS (Multimedia Messaging Service): An enhancement to SMS that allows you to attach images, short videos, or audio clips to your texts.

 

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Modern Uses

Today, SMS is not just for casual person-to-person texting. It is widely used by businesses and institutions for quick, reliable alerts: [1, 2, 3]

• Two-Factor Authentication (2FA): Receiving one-time security codes to log into your accounts (though some tech companies are shifting away from this due to security flaws).
• Automated Alerts: Appointment reminders, delivery notifications, and emergency warnings from government or public entities.
• Marketing: Businesses use