How to Download and Compile DAHDI on CentOS

In order to download DAHDI from source, visit http://www.downloads.digium.com/pub/telephony/dahdi-linux-complete/ and select one of the tar.gz links (http://downloads.asterisk.org/pub/telephony/dahdi-linux-complete/dahdi-linux-complete-2.7.0.1+2.7.0.1.tar.gz for example)
 

In a terminal, 

1. cd /usr/src/
   wget http://downloads.asterisk.org/pub/telephony/dahdi-linux-complete/dahdi-linux-complete-2.7.0.1+2.7.0.1.tar.gz

After this is done, extract the file

2. tar -zxvf dahdi-linux-complete-2.7.0.1+2.7.0.1.tar.gz

Change to the DAHDI directory

3. cd dahdi-linux-complete-2.7.0.1+2.7.0.1/

Lastly, compile DAHDI

4. make

5. make install

6. make config