SMS Messaging
SMS (Short Message Service) Messaging is a text-based communication protocol that allows the exchange of short messages (typically up to 160 characters) between mobile devices over cellular networks. It is widely used for person-to-person communication, notifications, alerts, and marketing campaigns, operating on standard telecommunication protocols like GSM, CDMA, and LTE. SMS is a foundational technology for mobile communication, supporting both one-way and two-way interactions without requiring internet connectivity.
Developers should learn SMS Messaging when building applications that require reliable, near-universal reach for notifications, authentication (e.g., two-factor authentication), alerts, or customer engagement, especially in regions with limited internet access. It is crucial for use cases in healthcare (appointment reminders), finance (transaction alerts), logistics (delivery updates), and emergency services, where delivery reliability and broad device compatibility are prioritized over rich media features.