Hi, I have installed an USB modem and test it using the strings from the included Aopen modem (Rockwell based), modified the modem.conf file and then Asterisk load them without errors. What is the syntax to be used with a modem as a FXO device when dialing? I have tried: exten => .[246]XXXXXX,Dial(Modem/${EXTEN},20) but it doesn't work. What else must be done? Thanks, Dan