AT Commands
F-20 AT Commands
%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.
When you send an AT command string to the modem, it adjusts its modem port speed
automatically to match the AT speed. You can disable this feature with %G1. When
%G1 is set, you can change the modem speed with the %Bn (where n is the new
modem speed) and %Fn commands.
This section lists the commands to configure the modem for each modulation protocol
and mode. Modem connection speeds are in parentheses.
Protocol
When %F0 is set:
Issue %G0:
Issue %G1:
V.21 (75-300 bps)
B0 at 300 bps
B0%B300
Bell 103 (75-300 bps)
B1 at 300 bps
B1%B300
V.22 (600 bps)
at 600 bps
%B600
V.22 (1200 bps)
B0 at 1200 bps
B0%B1200
Bell 212A (1200 bps)
B1 at 1200 bps
B1%B1200
V.22bis (2400 bps)
at 2400 bps
%B2400
V.32 (4800 bps)
at 4800 bps
%B4800
V.32 (7200 bps)
at 7200 bps
%B7200
V.32 (9600 bps)
at 9600 bps
%B9600
V.32bis (12000 bps)
at 12000 bps
%B12000
V.32bis (14400 bps)
at 14400 bps
%B14400
V.34 (14400 bps)
at 14400 bps
%BV14400
V.34 (16800 bps)
at 16800 bps
%B16800
V.34 (19200 bps)
at 19200 bps
%B19200
V.34 (21600 bps)
at 21600 bps
%B21600
V.34 (24000 bps)
at 24000 bps
%B24000
