AT Commands Reference Manual - wireless netcontrol GmbH

Chapter 3: AT Commands Reference
*** Plug in a headset
AT+ MAMOD =2
+CME ERROR: Operation not allowed
+MAHSD, Headset/TTY Switch Detect Enable
This command Enables/disables the headset/tty switch detect mechanism ("Headset" refers to
audio mode 1, "TTY" refers to audio mode 6).
Headset/TTY switch detect mechanism sets the active audio mode to "Headset"/ "TTY" (see
audio modes table in +MAMOD command's section) once a headset is plugged in. It returns to
the previous audio mode, once the headset is plugged out. +MAHSD value is saved in NVM.
Note: Upon setting +MAHSD, the audio mode status is explicitly checked and accordingly set.
When +MAHSD=1 and a headset is plugged in, +MAMOD value is automatically set to '1' and
its set command is disabled and will return ERROR.
When +MAHSD=2 and a headset is plugged in, +MAMOD value is automatically set to '6' and
its set command is disabled and will return ERROR.
Command
Type Syntax Response/Action Remarks
Set +MAHSD = OK
or:
+CME ERROR:
Read +MAHSD? +MAHSD:
Enables/disables headset/tty switch
detect.
Reads the headset/tty switch detect
status.
OK
Test +MAHSD=? +MAHSD:
The following table shows the +MAHSD parameters.
Table 3-136: +MAHSD Parameters
Description
Headset/TTY switch detection mechanism status
0 - Headset/TTY switch detect disable
1 - Headset switch detect enable
2 - TTY switch detect enable
April 15, 2010 H24 - AT Commands Reference Manual 3-205