# To connect to a running Asterisk session: asterisk -rvvv # To issue a command to Asterisk from the shell: asterisk -rx "<command>" # To originate an echo call from a SIP trunk on an Asterisk server, to a specified number: asterisk -rx "channel originate SIP/<trunk>/<number> application echo" # To print out the details of SIP accounts: asterisk -rx "sip show peers" # To print out the passwords of SIP accounts: asterisk -rx "sip show users" # To print out the current active channels: asterisk -rx "core show channels"