Hi.. I already post this problem on Freepbx forum, but i post it here. So.... I have a GSM gateway, and i haven't another FXO port, but i have one FXS port. So, i make an extension with my new account SIP (PAP2 linksys) No problem. (register ok), call ok...etc. Now i make a custom trunk with custom dial string : SIP/106. For the first time, is good ....it's ringing. But... but... now, when the gateway answered, how dial the initial number? I try to make : SIP/106/$OUTNUM$ ... don't work. Can i make this config style? Exemple: I call the GSM gateway from 100 extension number to 0612345678 get the trunk SIP/106 by 06xxxxxxxx dial rules PAP2 ringing Gateway answer. dialing 0612345678 Can you help me?