Sendium OS SMS Gateway — Initial Public Release

[DimitriosPetrakis]

🚀 We are excited to announce... the initial public release of Sendium OS SMS Gateway, an open-source, headless SMS gateway developed by Cytech Mobile.

Sendium is built for teams that need more control, transparency, and flexibility over their messaging infrastructure. Whether you are building SMS-enabled applications, managing telecom integrations, experimenting with SMPP connectivity, or exploring open-source messaging infrastructure, Sendium is now available for you to inspect, test, extend, and contribute to.

🔍 What is Sendium?

Sendium OS SMS Gateway is an open-source SMS gateway designed with a headless, developer-oriented approach.

The goal of Sendium is to provide a flexible foundation for modern SMS infrastructure, allowing developers, telecom teams, and messaging platform operators to work with technology they can understand, configure, and improve.

🧩 What you can find in this release

This initial public release provides the starting point for the Sendium open-source project, including:

Source code for the Sendium OS SMS Gateway
Project documentation
Feature and roadmap information
Contribution guidelines
Community discussion space
Technical references for developers and operators who want to explore the project further

This release marks the beginning of Sendium as an open-source project, not the end of its development. The roadmap will continue to evolve based on technical priorities, community feedback, and real-world use cases.

Who is this for?

Sendium is intended for:

Developers building SMS-enabled systems
Telecom engineers and messaging infrastructure teams
Operators working with SMPP and SMS routing
Companies that want more visibility into their messaging stack
Open-source contributors interested in telecom and messaging infrastructure

** 🤝Get involved**

We invite you to explore the repository, review the documentation, test the project, open discussions, report issues, and share your ideas.

Community participation will be an important part of Sendium’s evolution. Feedback, questions, feature suggestions, and contributions are welcome.

Useful links
Repository: https://github.com/cytechmobile/sendium
Documentation: https://github.com/cytechmobile/sendium/tree/main/docs
Discussions: https://github.com/cytechmobile/sendium/discussions
Issues: https://github.com/cytechmobile/sendium/issues
Contributions: https://github.com/cytechmobile/sendium/blob/main/.github/CONTRIBUTING.md

What comes next

Following this release, we will continue improving the documentation, expanding technical examples, refining the roadmap, and opening more conversations with the community around SMS infrastructure, routing, SMPP handling, scalability, observability, and real-world gateway operations.

Thank you for checking out Sendium.

We are looking forward to building this with the community.

Explore. Contribute. Build the future of messaging infrastructure.