US Robotics COURIER User Manual page 135

COURIER HIGH SPEED MODEMS
Any key Terminate current dialing operation resulting from an issued
Dial command; terminate Repeat mode(> or A>).
AT
Bn
Attention: lets the modem know commands are being issued to
it. Must precede all other commands except A/, A> and+++.
Handshake options.
BO a) V.32
bis modulation (includes V.32 answer tones).
Courier V.32
bis: Default. Courier HST Dual Standard:
Required to answer V.32
bis calls. To call V.32 bis
modems, may be set to BO or Bl. HST modulation
remains enabled. Courier HST: See next paragraph. HST
modulation remains enabled.
b) CCITT V.25 answer sequence. Required for all Courier
modems answering overseas calls at 1200 bps and above.
B1 a) HST modulation (no V.32
bis answer tones). Courier
HST: Default. Courier HST Dual Standard: Default.
Also calls, but does not answer, V.32
bis modems.
Courier V.32 bis: Calls V.32 bis modems, but does not
answer V.32 bis calls.
b) Bell answer tone, United States and Canada.
Cn Transmitter enabled/ disabled.
CO Transmitter disabled; receive-only condition.
C1 Transmitter enabled (Default).
D Dial the number that follows and enter Originate mode.
Optional parameters:
p
Pulse dial (Default).
T Touch-Tone dial.
w
(Comma) Pause for 2 seconds.
Return to Command mode after dialing.
Dial the letters that follow.
Transfer call (flash switch-hook).
Wait for second dial tone (with X3 or higher).
@
Wait for an answer (with X3 or higher).
R
Reverse frequencies.
C-2 Command Summary
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