Technical information

Table Of Contents
Chapter 1: Product Features
January 31, 2007 AT Commands Reference Manual 1-23
Audio
General Audio Setup Commands
+CRTT This command plays one cycle of a ring tone, stops the cycle in the
middle, and sets the ring tone to be used.
Page 3-209
+VTD This command handles the selection of tone duration.
Page 3-211
+VTS This command transmits a string of DTMF tones when a voice call
is active.
Page 3-212
+CALM This command handles the selection of the G24’s alert sound mode.
Page 3-207
+MMICG This command handles the selection of microphone gain values.
Page 3-208
+MADIGITAL This command switches between analog and digital audio modes.
Page 3-206
Basic Audio Specific Commands
S94 This S-parameter represents the Boolean status, On/Off, of the
sidetone feature.
Page 3-197
S96 This S-parameter represents the Boolean status, On/Off, of the echo
cancelling feature in the handsfree.
Page 3-198
+CRSL This command handles the selection of the incoming call ringer and
alert tone (SMS) sound level on the alert speaker of the G24.
Page 3-194
+CLVL This command sets the volume of the internal loudspeaker (which
also affects the key feedback tone) of the G24.
Page 3-195
+CMUT This command mutes/unmutes the currently active microphone path
by overriding the current mute state.
Page 3-196
Advanced Audio Setup Commands
+MAPATH This command sets/requests the active input accessory, and the
output accessory for each feature.
Page 3-199
+MAVOL This command determines a volume setting for a particular feature
in a particular accessory.
Page 3-202
+MAFEAT This command controls the various algorithm features, such as
sidetone, echo cancel and noise suppress.
Page 3-205
+MAMUT This command controls the muting/unmuting of all input paths
(MIC, HDST_MIC, DIGITAL_RX).
Page 3-204
Access
Access Control Commands
A/ This command repeats the last command entered on the terminal.
Page 3-213
AT This command checks the AT communication and only returns OK.
Page 3-213
+CPIN This command is only relevant for phones that use SIM cards. It
unlocks the SIM card when the proper SIM PIN is provided, and
unblocks the SIM card when the proper SIM PUK is provided.
Page 3-214
Table 1-1: AT Commands (Cont.)
AT Command Description Page