Calls from USB dongle in asterisk

Hello, today i decided to get out my way and try to figure out if it’s possible to configure a usb dongle as an FXO in asterisk, and i was using chan_dongle as the module, however am stuck and need your help.

I can read that the module is loaded and it can read the dongle, but how do i redirect calls from the dongle to a SIP on my machine or how do i dial extension let’s say 100 and it activates the dongle to make a call outside.
I would really appreciate your help and in case you need more of how my system is configured please tell me.

i wonder if someone will give ideas on how to do this. as far as for me. i was using gammu a little time before for the sms but not with the calls. I’m also interested about the chan_dongle.