Vmodem AT Commands
Ports configured for Vmodem operation interpret the following AT command codes.
All other AT sequences are accepted, but ignored by the Vmodem port.
Terminal Server User Guide
Vmodem AT Commands
Code
Description
+++ATH
Disconnect and hang-up a connection.
ATQ0
Enable connection responses for the duration of the session.
ATQ1
Suppress connection responses for the duration of the session.
ATV0
Selects numeric results codes for the duration of the session.
ATV1
Selects verbose results codes for the duration of the session.
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Chapter 7 Vmodem (Virtual modem)