Specifications

ISU AT Command Reference Phase V AT Commands
Iridium Proprietary Version 2.45
20 June 2011 74
9 Phase V AT Commands
9.1 +CAR - Audio Output Control
Set Command: +CAR=<n>
This command switches the type of audio output between analog, digital and mute (no audio output).
Valid values for <n> are as follows:
0 mute
1 analog
2 digital
Read Command: +CAR?
This command queries the current audio setting. Response is in the form:
+CAR: <n>
Test Command: +CAR=?
This command lists the supported values of <n>. Response is in the form:
+CAR: (list of supported values of <n>)
Unsolicited Command: +CAR:<n>
The +CAR unsolicited command is used to control the routing of audio when requested by an intelligent
peripheral. Intelligent peripherals can generate an audio routing request which is translated into a +CAR
unsolicited command to control audio routing on H2 handsets.
Valid values for <n> are as follows:
0 mute
1 analog
2 digital
This command does not support command concatenation on the 9555 and 9555A Handsets.