This guide provides a comprehensive overview of SMS as a high-impact communication channel for businesses. It covers SMS fundamentals, compliance requirements, opt-in best practices, and global regulations. The document explains how SMS supports use cases across marketing, authentication, alerts, and customer support, highlighting its speed, reach, and reliability. Best practices for message design, timing, personalization, and performance measurement are included. The guide also explores how SMS integrates with omnichannel strategies, ensuring consistent customer experiences while delivering strong engagement and conversion rates.

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