Manuel Ángel Rubio Jiménez wrote: First - there aren't many documents. Thus you have to use all of them, even If you do not like them. For Radius with FreeRadius there is a new tutorial: http://openser.org/docs/openser-radius-1.0.x.html For details of the modules and some other tutorials refer to http://openser.org/docs/ IMO also reading the old, outdated docs from iptel will give you some insights on (open)ser: http://www.iptel.org/ser/doc/seruser/seruser.html http://www.iptel.org/ser/doc/serdev/serdev.html For mediaproxy... the only document I know is the getting started guide from onsip.org. And of course the mailings lists archive of ser and openser contains lots of useful info. And there is also the wiki with the core cookbook. http://www.openser.org/dokuwiki/doku.php regards klaus