OpenVox GSM Card Setup Asterisk   print

First edit extra-channels.con to get the channel and group info.This file is generated when the card is detected.

If you need to set a route per channel then you will need to change the channel ID or create a goupe for multiple channels the file will have the following for each GSM Module

; Span 6: opvxg4xx/0/2 "OpenVox G400P GSM/CDMA PCI Card 0"
signalling = gsm
channel => 15
context = default
group = 63

Then create a custom trunk in FreePBX and

Custom Dial String: extra/g1/$OUTNUM$

or for channel specific you can use extra/15/$OUTNUM$ for gsm-1