USRobotics V.34 user manual AT D1234567R Enter, Cancel Dialing

COURIER HIGH SPEED MODEMS

	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. The command follows the
		Dial command, before or after the phone number:
		AT D1234567R <Enter>
X2-X7	Adaptive dialing. When any of the X2 through X7 options is in
	effect and you do not issue a dialing type in the Dial string, the
	Courier uses tone dialing, which is faster than the default pulse
	type. However, if the phone company's central office does not
	have tone detection equipment, the modem cannot break dial
	and continues to detect the dial tone. If this occurs, the modem
	automatically reverts to pulse dialing.
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.
DSn	Dial the number stored in nonvolatile random access memory at
	position n, where n = 0−9.

Cancel Dialing

To cancel Dial-command execution, press any key. If you inadvertently hit a key on the keyboard while the modem is dialing, the call is canceled. If this occurs, type the A/ command explained under Automated Redialing below.

When the modem receives a command, it stores the instruction in its command buffer until it receives the next AT command. Note that if you've sent the modem an additional command since the Dial command, A/ re-executes that command instead of redialing.

4-6 Data Mode Operations