In my office i need to make call from gsm mobile to direct extension number like 300,
my information about lab:
. GSM device
. Asterisk server
- extension, sip like 300
- Applied trunk between asterisk server and gsm gateway so the statutes between them is ok.
Am can make call from asterisk extension “300” to call direct to gsm mobile by used (prefix and matched pattern), and finally worked as fine without any problem.