Specifications

AT Command Set Reference
Ver. 1.00
GSM1308AT001 Page 218 Ver. 1.00 – 10/29/2008
4.3.5. $VSELECT Voice Select
(continued)
Notes In Automatic mode ($VSELECT=3), the
device will default to handset mode. If a
headset is plugged into the headset jack,
the device will automatically switch to
headset mode. When the headset is
removed, the device will switch back to
handset mode. AT$VSELECT=3 must be
entered prior to plugging in the headset, to
switch between modes properly.
Examples To set the voice mode to Headset:
AT$VSELECT=1
OK