I was just checking out some of the modules and i noticed that the http://www.freepbx.org/support/documentation/module-documentation/third-party-unsupported-modules/tweet2call
url list the Project page: http://dontcallmyboss.com/projects/
this url is now dead (well leading to a non related parking page).
I have no idea if the module code is good/old/dead etc but looks liek this project is abandoned.