[h323implementers] GNU Gatekeeper 3.5 released

Jan Willamowius jan at willamowius.de
Thu Jan 2 17:25:22 EST 2014

Dear community,

I'm happy to announce the release of GNU Gatekeeper version 3.5.
The new version brings a number of new features as well as a number of
important bug fixes and a few changes in configuration options.

As usual, you can download the source code and executable for Linux,
Windows, FreeBSD, OpenBSD, NetBSD and Solaris from



New features:

- implement H.460.22 to negotiate the use of TLS
- language based routing (using the upcoming H.323v8)
- new command line switch -mlock to prevent GnuGk from being swapped out
- new section [ModeVendorSelection] to set proxy mode based on endpoint
  vendor support for challenge/response authentication using DES-ECB,
  eg. from Avaya endpoints
- new switch [RoutedMode] FilterEmptyFacility= (Avaya interop)
- new switch [RoutedMode] ProxyHandlerHighPrio=0 to avoid setting the
  proxy handler to high priority; needed to run GnuGk on certain
  virtualization platforms
- print number of proxied calls and peak number of calls in statistics
  on status port
- new switch [RoutedMode] H46023ForceNat
- new switch [RewriteSourceAddress] TreatNumberURIDialedDigits
- more detailed codec descriptions in %{codec} and Radius attribute
- process multiple terminal-alias VSA from Radius
- extend [GkStatus::Message] for URQ

Configuration changes:

- changed default call signaling port from 1721 to 1720
- replace H235HalfCallMediaStrength= switch with H235HalfCallMaxTokenLength=
- disable use of SHA1 for TLS by default, the new switch [TLS] CipherList=
  can be used to customize the cipher selection

And a number of bug fixes (see changes.txt for all the details).

Jan Willamowius, Founder of the GNU Gatekeeper Project
Website: http://www.gnugk.org
Support: http://www.willamowius.com/gnugk-support.html

Relaxed Communications GmbH
Frahmredder 91
22393 Hamburg
Geschäftsführer: Jan Willamowius
HRB 125261 (Amtsgericht Hamburg)
USt-IdNr: DE286003584

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