Software installation ===================== As operating system we have choosen Debian Wheezy, since all the software components we use provide packaging for it. OpenSIPS_ --------- We got OpenSIPS_ installed via following commands: :: wget http://apt.opensips.org/key.asc apt-key add key.asc cd /etc/apt/sources.list.d/ wget http://apt.itsyscom.com/conf/opensips.apt.list apt-get update apt-get install Once installed we proceed with loading the configuration out of specific tutorial cases bellow. .. _OpenSIPS: http://www.opensips.org/