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Most other Hayes Compatible Modems
Step
1
2
Copyright © 2005-2007, Nortel Networks
.
Action
Send the following initialization string to the modem
AT S0=1 &C0 &D0 &S0 S37=9 &K4 Q1 V0 &W Z
Cycle the modem power switch.
Generic Hayes Modem Commands
Command
Meaning
AT
Starts a command string. Each new string must start
wit "AT."
S0=1
Determines the answer ring number. In this case the
modem will answer on the first ring.
&C0
Data Carrier Detect (DCD) is always asserted.
&D0
Data Terminal Ready (DTR) is ignored.
&S0
Data Set Ready (DSR) is always asserted.
&K4
Flow control is set to Xon/Xoff. RTS and CTS are
ignored.
Q1
Sets Quiet mode. No messages from the modem.
E0
Modem will not echo any characters.
&W
This command saves the configuration an must be the
last command used in the string.
Secure Router 3120
Installation Guide
NN47260-300 02.01 Standard
9.2 10 January 2007
—End—
Operator Interface 41
Nortel Networks Confidential
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