Asterisk as a Tandem Switch
To create a functional Asterisk VoIP Tandem, you will need to install
Asterisk onto a Linux Operating System, and then use the following
configuration files in your /etc/asterisk directory.
Step By Step instructions can be found by clicking here.
Once you've followed those instructions, come back to this page,
and copy these files to your newly built Asterisk Tandem.
Configuration Files