Download 1 PSI-DATA/BASIC-MODEM/RS232 Industrial Modem

AT Commands
D
Dial
The D command instructs your modem to dial a number. Enter the number that you wish
to dial after the D command. You can modify the D command with the following additional
commands:
P
Pulse Dialing
The P modifier generates the call using pulse dialing, which is standard in
Germany. Enter the modifier after the command, followed by the desired
telephone number.
T
Tone Dialing
W
m
The T modifier instructs the modem to use tone dialing. Enter the modifier after
the command, followed by the desired telephone number.
Wait for a Dial Tone
s.
co
The W modifier instructs the modem to wait for a second dial tone. Use this
command in private branch exchanges to wait for a dial tone after calling an
outside line.
Pause
ne
,
nt
Example: ATDP0W555-1111
This command dials 0 for an outside line, waits for a second dial tone and then
dials the number 555-1111.
@
om
po
This modifier inserts a 2-second pause before dialing. If, for example, your
modem is located in a private branch exchange (e.g., in offices), where a number
(usually 0) must be dialed for an outside line, insert a comma between the 0 and
the actual telephone number you wish to dial. Your modem dials 0, waits for two
seconds and then dials the telephone number. If a longer pause is required, you
can either insert another comma in the command line or change the value of the
S8 register (see page 6-13).
Wait for Five Seconds of Silence
on
l
in
ec
This modifier instructs the modem to wait until no tone has been detected on the
line for five seconds before dialing the specified number.
>
Dial an Outside Line via a Ground Button
;
Return to Command Mode
If your modem is to call another modem and then return to command mode
without disconnecting, enter the ; modifier as the last character in your dial
command line.
L
Redial
The last dialed telephone number is redialed.
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