DAHDI installing problem

I configured Dahdi many times as below, but same issue repeated, (is it means Configure Dahdi and then try and start it ??)
cd dahdi-linux-complete-3.1.0+3.1.0
** make**
** make install**
** make install-config** (when i run #make config results:make: Nothing to be done for `config’. so i proceeded with make install-config )

Iam thinking to uninstall 'dahdi-linux-complete" totally and reinstall again , (can I proceed, is there any complications in thet?)
If I can do, Please suggest the effective Procedure to Uninstall Dahdi completely, Iam very much thankful to you