Chapter 3: AT Commands Reference
December 31, 2007 AT Commands Reference Manual 3-247
The following table shows the +MMICG parameters.
Example
AT+MMICG=?
+MMICG: (0-31)
OK
AT+MMICG?
+MMICG: 16
OK
AT+MMICG=30
OK
+CRTT, Ring Type Selection
This command plays one cycle of a ring tone, stops the cycle in the middle and sets the ring tone
to be used.
Read
+MMICG? +MMICG: <gain>
+CME ERROR: <err>
The Read command displays the current
microphone gain.
Test
+MMICG=? +MMICG (list of
supported <gain>s)
+CME ERROR: <err>
The Test command displays the list of
supported gain values.
Table 3-163: +MMICG Parameters
<Parameter> Description
<gain> Microphone gain values in db:
0-31 0 is lowest gain value (not mute); default is 16 db
Command
Type
Syntax Response/Action Remarks
Set
AT+CRTT=
<RingTypeNumber>,
<operation>
OK
or:
+CME ERROR: <err>
The Set command sets the ring type
and operation.
Command
Type Syntax Response/Action Remarks
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