asterisk

asterisk console
asterisk -r

set output to verbose
core set verbose 10

CLI commands
core show channels
capi show channels
capi info
reload
sip show peers

asterisk -rx "sip show registry"

end / destroy channel
core show channels
soft hangup SIP/XXXXXX

MOH
wget http://downloads.digium.com/pub/telephony/sounds/asterisk-moh-freeplay-wav.tar.gz -P /tmp
tar xzf /tmp/asterisk-moh-freeplay-wav.tar.gz -C /tmp
cp /tmp/fpm-sunshine.wav /var/lib/asterisk/moh/
# extensions.conf