Black Box MD1640A Modem User Manual


 
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SERIES II INTELLIGENT DATA/FAX MODEMS
Wait for New Dial-Tone W
A W inserted in the dialing command causes the Series II Modem to
wait for another dial tone, and not resume dialing until another dial
tone is detected.
It is not necessary to enter a W at the beginning of the dialing
command to wait for a modem dial tone, because the modem
will do that first (pause automatically).
In order for this command to work, you must select Wait-For-Dial-Tone
dialing with the X2 or X4 command, so that your modem will be able to
detect the dial tone.
Return to Command Mode after Dial Command Execution ;
A semicolon (;), entered as the last character of a dialing command
causes the Series II Modem to return to the Command mode
immediately after executing the command, instead of waiting for a
carrier signal and going on line.
For example, entering ATDT5551212; would tone-dial the number, and
do nothing afterwards except go back into Command mode. This can
be useful in dialing applications where modem data transfer is not
desired, such as voice communications, or in applications involving
the use of touch tones as a data entry method, such as bank-by-phone.
Reverse the Mode of Operation R
In certain operations you may need to reverse the mode of operation
for your modem from originate to answer or answer to originate so that
it would answer the phone and go into answer mode. This command
turns off the reversing function with the R0 command and turns it on
with the R1 command with the modem in either command mode. If
you want to reverse from the originate mode, use R (with no number)
in the dialing string.