# GNU Gatekeeper

> H.323 gatekeeper implementation

**Wikidata**: [Q1021171](https://www.wikidata.org/wiki/Q1021171)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/GNU_Gatekeeper)  
**Source**: https://4ort.xyz/entity/gnu-gatekeeper

## Summary
GNU Gatekeeper is a free software implementation of an H.323 gatekeeper, designed to manage and control communication sessions in VoIP networks. It is distributed under the GNU General Public License, version 2.0, and supports multiple operating systems including Linux, Microsoft Windows, and macOS.

## Key Facts
- **Type**: H.323 gatekeeper implementation
- **License**: GNU General Public License, version 2.0
- **Operating Systems**: Linux, Microsoft Windows, macOS, Solaris, FreeBSD, OpenBSD
- **Latest Stable Version**: 5.6 (released on 2020-10-29)
- **Programming Language**: C++
- **Website**: [https://www.gnugk.org](https://www.gnugk.org)
- **Source Code Repository**: [GitHub](https://github.com/willamowius/gnugk)
- **Instance Of**: H.323 Gatekeeper, communication software, free software

## FAQs
### Q: What is GNU Gatekeeper used for?
A: GNU Gatekeeper is used to manage and control communication sessions in VoIP networks, specifically as an H.323 gatekeeper.

### Q: Which operating systems does GNU Gatekeeper support?
A: GNU Gatekeeper supports Linux, Microsoft Windows, macOS, Solaris, FreeBSD, and OpenBSD.

### Q: What license does GNU Gatekeeper use?
A: GNU Gatekeeper is distributed under the GNU General Public License, version 2.0.

### Q: Where can I find the source code for GNU Gatekeeper?
A: The source code for GNU Gatekeeper is available on GitHub at [https://github.com/willamowius/gnugk](https://github.com/willamowius/gnugk).

### Q: What is the latest stable version of GNU Gatekeeper?
A: The latest stable version of GNU Gatekeeper is 5.6, released on 2020-10-29.

## Why It Matters
GNU Gatekeeper plays a crucial role in VoIP networks by acting as an H.323 gatekeeper, which is responsible for managing and controlling communication sessions. Its implementation as free software ensures that it is accessible and modifiable by users, promoting transparency and collaboration in the development of VoIP technologies. By supporting multiple operating systems, GNU Gatekeeper provides flexibility for users in various environments. Its adherence to the GNU General Public License ensures that the software remains free and open-source, allowing for community-driven improvements and widespread adoption.

## Notable For
- **Free Software**: GNU Gatekeeper is distributed under the GNU General Public License, making it freely available for use, modification, and distribution.
- **Cross-Platform Support**: It supports multiple operating systems, including Linux, Microsoft Windows, and macOS, ensuring broad compatibility.
- **H.323 Gatekeeper Implementation**: As a dedicated H.323 gatekeeper, GNU Gatekeeper is specifically designed to manage and control communication sessions in VoIP networks.
- **Community-Driven Development**: The source code is hosted on GitHub, facilitating community contributions and continuous improvement.
- **Stable Releases**: Regular updates and stable releases ensure that users have access to reliable and up-to-date software.

## Body
### Overview
GNU Gatekeeper is a free software implementation of an H.323 gatekeeper, designed to manage and control communication sessions in VoIP networks. It is distributed under the GNU General Public License, version 2.0, and supports multiple operating systems, including Linux, Microsoft Windows, and macOS.

### Development and Releases
The project has seen multiple stable releases, with the latest version being 5.6, released on 2020-10-29. The source code is hosted on GitHub, allowing for community-driven development and continuous improvement.

### Technical Details
GNU Gatekeeper is written in C++ and is designed to work as an H.323 gatekeeper, which is responsible for managing and controlling communication sessions in VoIP networks. It supports various operating systems, ensuring broad compatibility and flexibility for users.

### Licensing and Availability
The software is distributed under the GNU General Public License, version 2.0, which ensures that it remains free and open-source. This license allows users to freely run, study, change, and distribute the software, as well as modified versions.

### Community and Support
The project benefits from community contributions and support, with the source code available on GitHub. This open development model fosters transparency and collaboration, enabling users and developers to contribute to the project's improvement.

## Schema Markup
```json
{
  "@context": "https://schema.org",
  "@type": "SoftwareApplication",
  "name": "GNU Gatekeeper",
  "description": "H.323 gatekeeper implementation",
  "url": "https://www.gnugk.org",
  "sameAs": ["https://en.wikipedia.org/wiki/GNU_Gatekeeper", "https://www.wikidata.org/wiki/Q123456789"],
  "operatingSystem": ["Linux", "Microsoft Windows", "macOS", "Solaris", "FreeBSD", "OpenBSD"],
  "applicationCategory": "Communication Software",
  "license": "GNU General Public License, version 2.0",
  "codeRepository": "https://github.com/willamowius/gnugk",
  "softwareVersion": "5.6"
}

## References

1. [The openh323gk Open Source Project on Open Hub: Languages Page. Open Hub](https://www.openhub.net/p/openh323gk/analyses/latest/languages_summary)
2. [Release 4.9. 2018](https://github.com/willamowius/gnugk/releases/tag/v4_9)
3. [Release 5.0. 2018](https://github.com/willamowius/gnugk/releases/tag/v5_0)
4. [Release 5.1. 2019](https://github.com/willamowius/gnugk/releases/tag/v5_1)
5. [Release 5.2. 2019](https://github.com/willamowius/gnugk/releases/tag/v5_2)
6. [Release 5.3. 2019](https://github.com/willamowius/gnugk/releases/tag/v5_3)
7. [Release 5.4. 2020](https://github.com/willamowius/gnugk/releases/tag/v5_4)
8. [Release 5.5. 2020](https://github.com/willamowius/gnugk/releases/tag/v5_5)
9. [Release 5.6. 2020](https://github.com/willamowius/gnugk/releases/tag/v5_6)
10. [Release 5.7. 2021](https://github.com/willamowius/gnugk/releases/tag/v5_7)
11. [Source](https://github.com/willamowius/gnugk/releases/tag/v5_8)
12. [Release 5.10. 2022](https://github.com/willamowius/gnugk/releases/tag/v5_10)
13. [Release 5.11. 2023](https://github.com/willamowius/gnugk/releases/tag/v5_11)
14. [Release 5.12. 2024](https://github.com/willamowius/gnugk/releases/tag/v5_12)
15. [Release 5.13. 2024](https://github.com/willamowius/gnugk/releases/tag/v5_13)
16. [Release 5.14. 2025](https://github.com/willamowius/gnugk/releases/tag/v5_14)
17. Freebase Data Dumps. 2013
18. [Source](https://api.github.com/repos/willamowius/gnugk)