An SMS gateway is used to let businesses send and receive text messages programmatically at scale – connecting software systems (websites, CRMs, banking platforms, e-commerce stores) to mobile telecom networks without needing a physical phone for each message.
Common use cases include:
- OTP and authentication — one-time passwords for logins and transactions
- Transactional alerts — order confirmations, delivery updates, appointment reminders
- Promotional campaigns — marketing offers and announcements to opted-in customers
- Two-way communication — customer support, surveys, and quiz-based engagement via long codes
- Automated notifications — system-triggered alerts via API integration
Businesses across banking, e-commerce, healthcare, and education rely on SMS gateways because SMS has near-universal reach, doesn’t require internet access, and has significantly higher open rates than email.
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