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List of AT Commands for Nokia 22
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4.1.17 +ER Error control reporting
Command response default
Set
+ER=<mode> 0
Read
+ER? +ER: <mode>
Test
+ER=? +ER: (0,1)
Mandatory when the V.42 error control is implemented. See the ITU-T Recommendation V.25ter,
section 6.5.5. Controls the presentation of the +ER intermediate result code.
4.1.18 +ETBM Call termination buffer manage
Command response default
Set
+ETBM=<txBuf>,<rxBuf>,<timer> 1,1,20
Read
+ETBM? +ETBM: <txBuf>,<rxBuf>,<timer>
Test
+ETBM=? +ETBM: (0-2),(0-2),(0-30)
Mandatory when the V.42 error control is implemented. See the ITU-T Recommendation V.25ter,
section 6.5.6. These settings may also be used in a non-transparent data call buffer management.
4.2 De facto
4.2.1 S25 Detect DTR change time
Command Response <n> values
Set
S25=<n> 0..255 (default 0)
Read
S25? <n> 000..255
The S25 command sets the time in seconds for reacting to the DTR signal change. The value 255
inhibits the signal change recognition. See also the &D command.
4.2.2 &S DSR signal behaviour
Command Description
Set
&S[0] always on
&S1 no effect
The &S command is ignored, the DSR is always ON.
4.2.3 &K Select flow control
Command Description
Set
&K[0] no flow control
&K3 hardware flow control (RTS/CTS)
&K4 software flow control (XON/XOFF)