User`s manual

U.S. Robotics I-modem Command Reference
Remote Access • Page 8-11
Quitting a Remote-Access Session
If you want to quit the remote-access login before you have entered the password, return
online by pressing <Ctrl>C or typing ATO<Enter>. After youÕve entered the password,
you can quit by sending one of these commands:
¥ ATO ends the remote-access session and keeps the connection.
¥ ATH ends the remote-access session and ends the connection.
¥ ATZ ends the remote-access session, ends the connection, and resets the guest device.