Chào bạn,
#remove pagckage
rpm -e dahdi-devel-2.4.1.2-10
rpm -e dahdi-2.4.1.2-10 --nodeps
#kiem tra module dahdi
lsmod | grep dahdi
#stop dich vu
/etc/init.d/asterisk stop
#remove module
modprobe -r wctc4xxp
modprobe -r dahdi_transcode rcbfx r1t1 rxt1
modprobe -r dahdi
#di chuyen
mv /etc/yum.repos.d/epel-testing.repo /usr/src
mv /etc/yum.repos.d/epel.repo /usr/src
#yum
yum -y install newt-devel slang-devel kernel-devel-$(uname -r) libtool* make gcc patch perl bison gcc-c++ ncurses-devel flex libtermcap-devel autoconf* automake* autoconf libxml2-devel cmake
#install
wget
http://downloads.asterisk.org/pub/telephony/dahdi-linux-complete/dahdi-linux-complete-2.4.1.2+2.4.1.tar.gz
cd dahdi-linux-complete-2.4.1.2+2.4.1
make clean
make all
make install
make config