SMS Protocol | Mimi Bebe

SMS (Short Message Service) protocol is the foundational technology enabling text messages to be sent and received across mobile networks. Developed in the late 1980s, it operates on top of signaling channels within GSM (Global System for Mobile Communications) networks, allowing messages to be transmitted even when a voice call isn't active. The protocol defines message structure, addressing, and delivery mechanisms, typically limiting messages to 160 characters in their original form. While seemingly simple, its robust design has made it a persistent communication method, outlasting many newer technologies.