watch "asterisk -rx 'sip show channelstats'"
Свежие исходники https://github.com/rajesh6115/asterisk-chan-dongle
Ещё свежее: https://github.com/wdoekes/asterisk-chan-dongle
./bootstrap ./configure --with-astversion=16.16 make
Список команд http://asterisk-service.com/page/chan-dongle-use
ATTRS{idVendor}=="12d1", ATTRS{idProduct}=="1001", ENV{ID_MM_DEVICE_IGNORE}="1"
usermod -a -G dialout asterisk