USRobotics V.34 - Manual (Page 127)

COURIER HIGH SPEED MODEMS
Alphabetical Command Summary C-5
@ Wait for an answer (with X3 or higher). The @ command
can be used in the Dial string to tell the modem to detect
at least one ring, wait for five seconds of silence at the
other end of the call, and then continue to execute the
Dial string.
/ A slash (/) causes a pause of only 125 milliseconds.
R Reverse frequencies. This command allows calls to an
originate-only modem. It reverses the modem's
originate/answer frequencies, forcing the Courier to dial
out at the answer frequency.
DL Dial the last-dialed number. The modem stores each Dial
command until it receives the next Dial command. Use DL
instead of A/, described on the next page, if you wish to send
the modem non-Dial commands before dialing again.
DS n Dial the number stored in nonvolatile random access memory at
position
n, where n = 0 − 9.
E n Command mode local echo. Enables/disables the display of
your typed commands. If double characters appear on the
screen, both the modem's local echo and your software's local
echo are on.
The Courier is shipped with DIP switch 4 OFF, enabling local
echo. The E
n command controls the local echo for a current
session, independently of the switch setting.
E0 Command mode echo OFF. The modem does not
display keyboard commands.
E1 Command mode echo ON.
F n Online local echo. This command causes the modem to display
a copy of the data it is transmitting to another system.
F0 Online echo ON. Sometimes called half duplex. As the
modem transmits data to a remote system, it also sends a
copy of the data to the screen.
F1 Online echo OFF. Sometimes called full duplex. Default.
H n On/off hook control.
H0 Hang up (go on hook).
H1 Go off hook.