Chapter 3: AT Commands Reference
June 30, 2008 AT Commands Reference Manual 3-243

The following diagram shows the audio paths:.

Figure 3-7: Audio Paths

Command
Type Syntax Response/Action Remarks
Set +MAPATH=
<direct>,<accy>
[,<features>]
OK
or:
+CME ERROR: <err>
The Set command sets the audio path
mode. The mode indicates which I/O
accessories are now active for the different
audio features. The <features> field is
only used for outputs (direct=1).
Read +MA PATH? +M APATH: 1(m ode
in),<accy>
+MAPATH:2(mode out),
<accy>,<feature>
[<CR><LF>+MAPATH:2
(mode out),
<accy>,<feature>
[...]]
OK
The Read command returns the active
input audio accessory and the output
accessory for each feature.
Test +MAPATH=? +MAPATH: (list of
supported directions),(list
of supported
accessories),(list of
supported features
combinations)
OK
The Test command returns the supported
audio directions (input/output),
accessories and features.
Handset Microphone
Headset Microphone
Voice
HeadsetSpeaker
Voice
HandsetSpeaker
Alert/Ringer
AlertTransducer
Handset Microphone
Headset Microphone
Input

Voice

Alert

Ring

Features:

Voice

Key feedback

Alert

Ring

Headset Speaker
Handset Speaker
Alert Transducer
Input voice
Output