Cabletron Systems CSMIM-T1 - Manual (Page 141)

Commands
CSMIM-T1 Hardware Installation Guide 7-15
&F Restore Factory Defaults
Restores factory default settings.
-F n Secondary Flow Control
-F0 Disables secondary flow control characters.
-F1 Enables secondary flow control characters.
Controls whether the modem sends or receives secondary flow
control characters on the serial port. When -F1 is set and primary
flow control enabled on the serial port, the modem sends two flow
control characters (one primary and one secondary) to the host for
flow control processing.
If the modem receives either a primary or secondary XOFF flow
control character, it stops sending data until it receives the
corresponding primary or secondary XON character.
%G n Independent Serial-Port/Modem-Port Speed
%G0 Serial-port speed determines modem-port speed.
%G1 %B command determines modem-port speed.
Determines whether the modem-port speed updates to match the
serial-port speed with each AT command. When %G1 is set, the
modem-port speed does not update, and you must change it with
a %B or %Fn command.
&G n Guard Tone
&G0 Disables guard tone.
&G1 Sets guard tone on the answering modem to 550 Hz.
&G2 Sets guard tone on the answering modem to 1800 Hz.
NOTE
Set %G1 first before setting %Fn.