A new update is available for Fedora Core - Fedora Core 4 Update: openh323-1.15.6-1.FC4. Here the announcement:

Fedora Update Notification
FEDORA-2005-859
2005-09-19
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Product : Fedora Core 4
Name : openh323
Version : 1.15.6
Release : 1.FC4
Summary : Library for H323 spec.
Description :
Implementation of the ITU H.323 teleconferencing protocol.

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Update Information:

This is an upstream release (the last one in the 1.2 series)
of gnomemeeting and related libraries.

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* Tue Sep 6 2005 Daniel Veillard <veillard@redhat.com> 1.15.6-1.FC4
- new upstream release


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This update can be downloaded from:
http://download.fedora.redhat.com/pub/fedora/linux/core/updates/4/

bf4a5ab55bc1da90932f13be3d813b7b SRPMS/openh323-1.15.6-1.FC4.src.rpm
103fd17b3b445fe69b9ce336fd20a30a ppc/openh323-1.15.6-1.FC4.ppc.rpm
f83040441653517881407b8201c65611 ppc/openh323-devel-1.15.6-1.FC4.ppc.rpm
318c31cbeb699e8908a18012a5fcb3ce ppc/debug/openh323-debuginfo-1.15.6-1.FC4.ppc.rpm
c874ff8f81c812fe52dd27531979774c ppc/openh323-1.15.6-1.FC4.ppc64.rpm
ce18b705ed090711a37e24909cbb0d8a x86_64/openh323-1.15.6-1.FC4.x86_64.rpm
07aa498c3c49555176c20bc4be3e5fd1 x86_64/openh323-devel-1.15.6-1.FC4.x86_64.rpm
d4d562d79172a52b4f2f6d642dc2d645 x86_64/debug/openh323-debuginfo-1.15.6-1.FC4.x86_64.rpm
a3dc7c53c323a9559adba34f7589ef01 x86_64/openh323-1.15.6-1.FC4.i386.rpm
a3dc7c53c323a9559adba34f7589ef01 i386/openh323-1.15.6-1.FC4.i386.rpm
ac150a5c80285ea9d30b711c7f5667a2 i386/openh323-devel-1.15.6-1.FC4.i386.rpm
477e9fbe70792f820a489994c0723f61 i386/debug/openh323-debuginfo-1.15.6-1.FC4.i386.rpm

This update can also be installed with the Update Agent; you can
launch the Update Agent with the 'up2date' command.