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Circuit- Switched Configuration
Redwing CDMA for Sprint - User Guide, version 2.31
AT Commands and command string
Each modem requires a command string that is a combination of AT commands limited to a maximum of 40
characters. The command string will vary depending on the needs of the connected device (for example,
some devices need DTR to be high while others need DTR to be ignored).
parameters and defaults, refer the AT Command appendix starting on page 22.
Common AT Commands
E Echo
Q Quiet Mode
&C DCD Control
&D DTR Options
&S DSR Options
S0 Auto-answer mode
S7 Wait for Carrier
S8 Comma Pause Time
S9 Carrier Detect Response Time
+IFC=x,x Enable or Disable Flow control -
replacement command).
$QCVAD Answer as a Data Call for C3110, .
+CICB Answer as a Data Call for C3111, .
Commands Specific to the Redwing C3110
There are two primary commands for setting a modem for Auto-INIT. Both commands must be
entered in this order for the modem to initialize.
AT+ATINITSTATE=1
AT+ATINIT=string,C[,break][,comma]
The command string cannot contain any spaces, commas, the plus (+) symbol, or a semi-colon (;).
command needed for the string contains a plus or comma (for example, +IFC=0,0), you will need
to designate a break character since you cannot use the standard break of
and a replacement for the comma. The break and comma designations need to be at the end of the
ATINIT command and separated with commas. During the INIT sequence, the modem looks at the
entire command before executing the AT command string. If there are replacement values, it will
perform the appropriate replacement before executing the AT command.
Example: AT+ATINIT=&C1S0=1$QCVAD=4%+IFC=0^0,C,%,^
The "%" will allow the "+" to be used and the "^" will translate to a ",". The AT command exe-
cuted would be:
Example of executed command: AT&C1S0=1$QCVAD=4+IFC=0,0
For a full listing as well as
for C3110, you will need to use a comma
RTS/CTS (
;
If an AT
for the plus to be read
7
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