How to install/compile app_dtmftotext.c

Hi,

I was looking for a way to pass alphanumeric variables to asterisk via the keypad, found this application app_dtmftotext.c and its use instructions on the wikihttp://www.voip-info.org/wiki/index.php?page=Asterisk+cmd+DTMFToText, but with no compiling/installation instructions.

Can anybody be of help here?

I posted this before on the user list but got no reply.

Thx

IaMiAmI