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Asterisk 1.4.18-rc2 is now available.  One of the developers made a change to
chan_sip that they wanted to get in to this release.  A few other bug fixes were
added, as well.

This release candidate is published for anyone that is interested in helping to
test it for a couple of days before it is officially released.  To download the
release candidate, use the following svn command:

$ svn co http://svn.digium.com/svn/asterisk/tags/1.4.18 asterisk-1.4.18-rc2

If you would like it in tarball format, use the following commands:

$ svn export http://svn.digium.com/svn/asterisk/tags/1.4.18 asterisk-1.4.18-rc2
$ tar -czvf asterisk-1.4.18-rc2.tar.gz asterisk-1.4.18-rc2/

Thanks!