specify a command string which is sent to the modem prior to a dialing
session. This string is usually called the Dialing Prefix or Dialing
String, and it instructs the modem prior to dialing and going on-line.
Listed below are common commands which are helpful for setting the
software Dialing Prefix/Dialing String.
ATS0=3
Instructs the modem to auto answer an incoming
call on the third ring by setting register S0 to 3.
ATX4DT9W
Instructs the modem to tone dial the number 9 and
hold it until a dial tone is detected. This string also
selects the X4 response set.
ATS6=10DP
Instructs the modem to wait for 10 seconds and
then use pulse dial the call.
ATM2L3DT
The modem monitoring speaker is always on, with
high volume, and tone dials the call.
ATB0DT
Instructs the modem to use ITU-T protocol to
establish a connection with the remote modem and
tone dial the call.
AT&P1DP
Pulse dials with a make/break ratio of 33/67 (for
most European countries).
AT&P0DP
Pulse dials with a make/break ratio of 39/61 (for
USA).
AT\N1
Instructs the modem to operate in direct mode and
function as an ordinary non-MNP/V42 modem.
Configuring the modem for ECDC operation with error correction and
data compression enabled will result in better performance and higher
speeds from your modem.
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