Outgoing calls trough GSM trunk (dongle0)


I have a basic configuration of the lateste version of Asterisk for RaspberryPi. All configurations made with FreePBX.
I have a compatible and working GSM dongle and mobile SIM working.

I allready can route incoming calls [Landline] --> [GSM Number] --> [SIP internal extension]

Now, I can’t make outgoing calls. Eg. [SIP internal extension] --> [GSM Number/dongle] --> [LandLine or other mobile number]

Playing ‘cannot-complete-as-dialed.alaw’ (language ‘en’)
Playing ‘check-number-dial-again.alaw’

Trunks are set.
Outbound routes are set and dial patterns looks ok (using the “.” for all).

Any help would be apreciated.