asterisk users - Aug 2007 - From where to download all libraries required for configuring R2MF

Hi,
      	I got one link where I got libraries required to configure R2MF.
Their are 4 libraries required
	spandsp, libsupertone, libmfcr2 and libunicall . On searching for the tar
balls One link is given and that is not opening up.( i.e.
<http://www.soft-switch.org/downloads.html> )
	 Can anybody tell me from where I will download libraries libsupertone,
libmfcr2 and libunicall tarballs.( As I got spandsp tarball and downloaded
it)
Thanks and regards,
sanmchal singh