Fax Module installation with asterisk -

for fax module installation with asterisk go as following comand..

cd /usr/src
wget http://www.soft-switch.org/downloads/spandsp/spandsp-0.0.2pre25/spandsp-0.0.2pre25.tar.gz
tar zxf spandsp-0.0.2pre25.tar.gz
cd spandsp-0.0.2
./configure --prefix=/usr && make && make install
yum -y install ghostscript

cd /usr/src/asterisk/apps
wget http://nerdvittles.com/aah2/app_nv_faxdetect.c
wget http://www.soft-switch.org/downloads/spandsp/spandsp-0.0.2pre25/asterisk-1.2.x/app_rxfax.c
wget http://www.soft-switch.org/downloads/spandsp/spandsp-0.0.2pre25/asterisk-1.2.x/app_txfax.c
wget http://aussievoip.com/makefile.patch
patch < makefile.patch
cd ..
make
make install

after installation the softs-witch change in extentions.conf

And enjoy