Because i loss project this is all guilde for you connect server my asterisk to chan-dongle (usb huawei),this is basic part of call center =====LINK DOWNLOAD FILE INSTALL ASTERISK:https://drive.google.com/file/d/1AXlx6UXxm9SUi-nwjv7Nf2w92SQImqGZ/view?usp=sharing I play project on centos 6 =====FIX SOME BUG: http://linux.mixed-spb.ru/asterisk/dongle_part1.php
hungcuiga1/call_center_simple_vietnam_academic
connect server my asterisk to chan-dongle (usb huawei),this is basic part of call center