Automate conversations with a modem or serial device. Commonly used to establish PPP (Point-to-Point Protocol) connections. More information: https://manned.org/chat.8.
chat 'expect_send_pairs'
chat -f 'path/to/chat_script'
chat -t timeout_in_seconds 'expect_send_pairs'
syslog
:chat -v 'expect_send_pairs'
chat -r path/to/report_file 'expect_send_pairs'
\T
in the script:chat -T 'phone_number' '"ATDT\\T CONNECT"'
chat 'ABORT "error_string" expect_send_pairs'