2024-02-26 09:18
I have just bundeled up the changes and bug fixes of the past 2 years and released PTLib 2.10.9.6.Most notable in this release is working IPv6 on *BSD, macOSX and Solaris as well as support… Read More
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News and updates about the GNU Gatekeeper, VoIP and videoconferencing. All you need to know about H.323 and related standards.
2024-02-19 17:21
GNU Gatekeeper version 5.12 has been released.Download: https://www.gnugk.org/h323downldad.htmlThis is a bug fix release with a few new features added.Another important bug in the hand… Read More
2023-02-20 11:13
GNU Gatekeeper version 5.11 has been released.Download: https://www.gnugk.org/h323downldad.htmlThis is a bug fix release with a few new features added.An important bug in the handling of the… Read More
2022-08-24 07:13
GNU Gatekeeper version 5.10 has been released.Download: https://www.gnugk.org/h323downldad.htmlThis is a bug fix release.Bugs fixed:fix a crash when handling the MasterSlaveDetermination mes… Read More
2021-11-30 08:52
I have compiled a poll with 10 quick questions. Please feel free to add any other suggestions you may have. Don't be too kind, we really want to know what to improve.https://www.gnugk.org/su… Read More
2021-10-26 13:21
GNU Gatekeeper version 5.9 is out with a number of bug fixes and a few new features.Download: https://www.gnugk.org/h323download.htmlNew features:new switches [Proxy] CachePortDetection=1 an… Read More
2021-07-22 09:04
GNU Gatekeeper version 5.8 has been released with a number of bug fixes and a few new features.To stay updated on new releases, please also follow us on Twitter!Improved interoperability wit… Read More
2021-03-04 12:33
GNU Gatekeeper version 5.7 has some important bug fixes, improves interoperabilitywith other vendors and also has a few new features. Several severe crashes and a few memory leaks have… Read More
2021-02-02 10:58
H323Plus 1.27.2 and PTLib 2.10.9.4 have been released.Changes in H323Plus:- support for Alpine Linux for smaller container images- crash fixed on invalid RTCP packets- memory leaks fix… Read More
2021-01-19 09:00
Many networks are migrating from IPv4 to IPv6. What can you do if still have H.323 endpoints that only support IPv4 ?The GNU Gatekeeper can translate IPv4 into IPv6 calls and vice versa.You… Read More
2021-01-13 09:00
Most H.323 vendors did not implement encrypting the signaling connection with TLS. They only encrypt the media (RTP). But you can use the two GNU Gatekeepers to encrypt you call signaling ev… Read More
2021-01-08 16:54
This is not only a H.323 topic, but since H.323 also uses TCP connections, it applies to H.323 as well: To detect network errors and signaling connection problems, you can enable TCP keep al… Read More
2020-10-29 09:41
Today GNU Gatekeeper version 5.6 has been released.Download: https://www.gnugk.org/h323download.html It contains an important bug fix to H.460.19 multiplexing and H.460.26 (media over… Read More
2020-06-30 06:34
I am happy to announce the release of GNU Gatekeeper 5.5.This release has new features and bug fixes when you run clustered gatekeepers. It also improves the port detection feature and we ha… Read More
2020-01-07 08:15
I am happy to announce the release of GNU Gatekeeper 5.4.You can download it from https://www.gnugk.org/h323download.htmlNew features:new accounting module to send accounting data to an MQTT… Read More
2019-10-23 16:06
I have compiled a quick poll. Please tell us what you think and how the GNU Gatekeeper could be made even better!Feel free to add any other suggestions you may have.https://www.gnugk.org/sur… Read More
2019-08-12 10:22
When you run the GNU Gatekeeper, you can block spam calls from the well known bots ("MERA RU", "SimpleOPAL" etc.) eg. using a small LUA script in your config.But that alone doesn't stop the… Read More
2019-07-26 14:18
I have just released GNU Gatekeeper version 5.3.You can download it from https://www.gnugk.org/h323download.htmlThis release has a number of new features as well as some important bugfixes.W… Read More
2019-06-05 08:09
20 years ago, in June 1999, I released the first version of the GNU Gatekeeper. Back then we still called it "OpenH323 Gatekeeper".The first version was very simple and only supported RAS an… Read More
2019-04-10 09:37
The main new feature in this release is H.245 multiplexing.Together with the long supported RTP multiplexing it allows GnuGk to handle a large amount of concurrent calls from H.460 endpoints… Read More
2019-03-18 16:49
This release that has a rewritten networking implementation (aka"large-fdset") that allows GnuGk to scale to higher numbers of callsper server than previous versions.This new implementation… Read More
2018-08-17 16:07
I'm happy to announce the release of GNU Gatekeeper version 5.0.This version has new features and a few bug fixes. You can download it from https://www.gnugk.org/h323download.htmlWhats new ?… Read More
2018-04-05 09:31
This version has new features and a few bug fixes. You can download it fromhttps://www.gnugk.org/h323download.htmlWhats new ?We have 2 new accounting modules: HtttpAcct and AMQPAcct th… Read More
2018-03-21 17:00
The big videoconferencing vendors (Polycom, Lifesize, Cisco etc.) only support their products for a limited time. After that they go „end-of-life“ and don't receive any more upda… Read More
2018-01-17 15:22
GNU Gatekeeper version 4.8 has been releasedThis version has many new features. You can download the new version fromhttps://www.gnugk.org/h323download.htmlOverview:New maintenance mode: Whe… Read More
2017-10-10 23:34
The GNU Gatekeeper mailinglist is moving to a new hosting service and you have to re-subscribe to remain on the list and stay informed!The list has rather litle volume, but you will get anno… Read More
2017-10-04 12:15
now that hopefully everybody has updated to GnuGk 4.7 here is a little bit of background information on the latest security update:RTP bleed is an attack that allows the attacker to redirect… Read More
2017-09-21 09:02
This version is purely a security update and has no new features. All users are encouraged to update, especially if you use port detection (IgnoreSignaledIPs=1) you should update ASAP.It has… Read More
2017-09-04 09:45
I'm happy to announce that GNU Gatekeeper version 4.6 has just beenreleased.This version has a few new features as well as bug fixes.New features:least used routing: distribute calls evenly… Read More
2017-04-19 20:51
Could everybody please give some feedback how you like GnuGk and it can be improved ?I have compiled a quick poll. Please feel free to add any other suggestions you may have.https://www.gnug… Read More
2017-03-17 09:58
The most important change is the implementation of TCP keepalives for H.460.18 (bugfix) and optionally for all kinds of calls (feature). This is really important for NAT traversal.In additio… Read More
2017-01-06 11:50
GNU Gatekeeper 4.4 was released today. This is mainly a bug fix releasewith only 2 new features.If you use SSH on your status port you are urged to update as soon aspossible and also if you… Read More
2016-11-16 23:17
I'm happy to announce the release of GNU Gatekeeper 4.3.This new version contains a number bug fixes and some security fixes.Fuzzy testing surfaced methods to crash GnuGk remotely, causing a… Read More
2016-10-08 15:52
If you are looking for a free H.323 endpoint to connect to the GNU Gatekeeper, mobile apps for smartphones and tablets seem to offer the widest variety of choice right now.PolycomMy personal… Read More
2016-05-31 22:32
I'm happy to announce the release of GNU Gatekeeper 4.2.Version 4.2 is mainly a bug fix release.A bug in proxying H.239 connections through NAT has been fixes as wellas a number of possible… Read More
2016-04-18 05:44
We are running a suvery to get feedback and ideas for the future development of the GNU Gatekeeper.Please take a moment to answer a few short questions:http://www.gnugk.org/survey-2016.htmlT… Read More
2016-02-17 14:16
I'm happy to announce the availability of GNU Gatekeeper 4.1.This is mainly a bug fix release. If you are using GnuGk as a server ina traversal zone or if you do H.239 presentations with Ava… Read More
2016-01-29 16:47
The H.323 protocol places IP numbers inside the signaling messages and establishes multiple TCP and UDP connections for a single call. You can't even be sure beforehand of the direction in w… Read More
2015-12-03 09:11
I am pleased to announce the release of GNU Gatekeeper 4.0.It is now available from http://www.gnugk.org/h323download.html.This release includes source code suitable for Linux, Windows, MacO… Read More
2015-11-20 15:05
Wireshark 2 has been released. It includes decoding of H.323 over IPv6 wich didn't work properly in all previous version.Wireshark 2 has a new UI that takes a moment to get used to, but also… Read More
2015-11-01 12:42
GnuGk 4.0 is in Beta now. Please give it a try!http://www.gnugk.org/gnugk-4.0-beta.htmlH.235 password authenticationUntil now, GnuGk only supported MD5 password tokens well. The passwordonly… Read More
2015-10-08 09:50
The beta version for the upcoming 4.0 version is now available:http://www.gnugk.org/gnugk-4.0-beta.htmlMost important new features:much improved H.235 password authenticationIPv6 updates and… Read More
2015-07-10 12:46
I am pleased to announce a new release of the GNU Gatekeeper,version 3.9, now available from http://www.gnugk.org/h323download.html.This release includes source code suitable for Linux, Wind… Read More
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