Configurations
of GSM/VoIP networks allow the service providers to avoid the local Wired
Public Switched Network (PSTN) in communication with a GMS mobile handset. As a
result, the high rates charged by telephone companies are avoided.
Mini Asterisk GUI
A handy Web GUI with supportive documentation and quick learning cycle is called Mini Asterisk. Existing analog jacks and IP phones are defined automatically, and no procedures of Asterisk configuration are required.