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List of AT Commands for Nokia 22
Copyright © Nokia Mobile Phones 2001. All rights reserved.
4.1.8 &C Circuit 109 (received line signal detector) behaviour
Command Description
Set
&C[0] always on
&C1 normal operation
The &C command determines how the state of the circuit 109 relates to the detection of a received
line signal from the distant end. Changing the parameter will take effect immediately in both
command and online command states.
In the &C1 mode of operation, the circuit 109 is on during the connection. The circuit 109 is also
known as a DCD or carrier signal.
4.1.9 &D Circuit 108 (data terminal ready) behaviour
Command Description
Set
&D[0] DTR on->off ignored
&D1 DTR on->off causes transition to on-line command state if a call is in progress
&D2 DTR on->off causes hang-up
&D3 DTR on->off causes hang-up and performs reset, like Z
The &D command determines how the DCE responds when the circuit 108/2 is changed from ON
to OFF during the online data state. The circuit 108 is also known as DTR signal.
4.1.10 +IPR Fixed DTE rate
Command Response Default
Set
+IPR=<rate> 0
Read
+IPR? +IPR: <rate>
Test
+IPR=? +IPR: (0),(9600,14400,19200,28800,38400,57600,115200)
The +IPR command sets the data rate at which the DCE will accept commands. The specified rate
takes effect immediately following the issuance of the current command line.
NOTE: The reset commands Z and &F do not change this setting.
Defined values
<rate> is the bit transmission rate in one second