Gammu & Kannel

Gammu represents the foundation of reliable SMS communication, providing direct access to GSM modems and mobile devices through a comprehensive library and command-line interface. The platform supports hundreds of mobile phone models and GSM modems, making it the universal solution for mobile device communication regardless of hardware specifications or manufacturer.

Kannel extends Gammu's capabilities by providing a high-level HTTP API gateway that enables seamless integration with modern web applications and enterprise systems. The gateway handles message queuing, delivery confirmation, and load balancing across multiple GSM modems, ensuring optimal performance and reliability for high-volume SMS operations.

The combination of Gammu and Kannel creates a complete SMS infrastructure that scales from small deployments to enterprise environments. Gammu's direct hardware control ensures maximum reliability and delivery rates, while Kannel's HTTP API enables easy integration with existing systems and applications. This architecture supports bulk SMS campaigns, two-factor authentication systems, and real-time messaging applications.

For enterprise applications, Gammu and Kannel provide advanced features including message queuing, delivery reports, automatic retry mechanisms, and support for multiple GSM modems for redundancy and load distribution. The platform can handle thousands of SMS messages per minute while maintaining high delivery rates and providing comprehensive logging and monitoring capabilities for operational oversight.