Hello, I'm trying to build a gsm gateway with following setup; § Raspberry pi B+ (FreePBX 14.0.1.8) § Usb hubb § Gsm dongel Huawei E1750 I have followed the followining setup; http://www.raspberry-asterisk.org/documentation/gsm-voip-gateway-with-chan_dongle/ https://sourceforge.net/p/raspbx/discussion/tutorials/thread/6a57b991/#4df4 Modem is detected fine and unlocked; raspbx*CLI> dongle show device state dongle0 -------------- Status ------------- Device : dongle0 State : Free Audio : /dev/ttyUSB1...