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The GNU Gatekeeper (GnuGk) is a full featured H.323 gatekeeper,
available freely under GPL license.
It forms the basis for a free IP telephony system (VOIP).
Please read the manual (especially the tutorial) and the FAQ for general information
what a gatekeeper does or take a look at some
VOIP and H.323 books to get into the subject.
Mailinglist
Please subscribe to the mailinglist to stay up-to-date, discuss the GNU Gatekeeper or ask questions.
Please also visit the mailinglist archive.
Features
The GNU Gatekeeper is very stable.
It is being used commercially by many organizations to provide VOIP services.
- we provide executables for Linux, Windows, MacOS X, Solaris, FreeBSD, OpenBSD and NetBSD
- can be run as a Windows service
- accounting and call authorization via SQL database, Radius, file or external application
- flexible call routing
- number rewriting (calling and called)
- support for NAT traversal
- full H.323 proxy
- TCP interface to applications
- CTI functions (eg. VOIP call-center, call transfers)
- gatekeeper clustering support (neighbors, parent/child, alternates)
- H.235 security
- graphical user interface
- it's free, including source code
There are also lots of ideas for new features.
Compatibility
The interoperability list shows
a lot of equipment GnuGk has been used with.
In addition to the general settings explained in the manual there are some specific configuration notes
how to configure gateways from some major vendors for use with GnuGk.
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News
15. Sep 2008
GkGUI 0.12 released
The Java GUI has been updated with MakeCall support.
2. Apr 2008
GnuGk 2.2.7 available
GnuGk 2.2.7 has been released.
10. Feb 2008
IsdnGw updated
IsdnGw 0.3.5 is now available, incl. Linux executable.
3. May 2007
GnuGk 2.2.6 released
GnuGk 2.2.6 has been released.
5. May 2006
OpenSource Telephony Summit
Here are the slides of the GnuGk talk at the OpenSource Telephony Summit 2006.
7. Apr 2006
Spanish Gatekeeper Manual
The Spanish manual s now complete as of GnuGk 2.2.1.
4. Apr 2006
German Homepage
Started a German GnuGk site.
1. Dec 2005
GkGUI 0.11 released
GkGUI 0.11 has been released.
20. Dec 2003
GnuGk ACD 1.3 released
A new version of the GnuGk ACD has been released. It allows you to configure how to deal with calls when no agent is available (reject, keep ringing, send to announcement device).
3. Aug 2002
Site moved
OpenH323 Gatekeeper moved from www.willamowius.de to www.gnugk.org
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