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Chapter 3: AT Commands Reference
April 15, 2008 G24-L AT Commands Reference Manual 3-173
+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.
The following table shows the +CRTT parameters.
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.
Read
AT+CRTT? +CRTT:
<RingTypeNumber>
OK
or:
+CME ERROR: <err>
The Read command returns the ring
type number.
Test
AT+CRTT=? +CRTT: (list of
supported
<RingTypeNumber>s),
(list of supported
<operation>s)
OK
or:
+CME ERROR: <err>
The Test command returns the list of
supported tone type numbers and
operations.
Table 3-115: +CRTT Parameters
<Parameter> Description
<RingType
Number>
Ring tone styles (see Table 3-116)
<operation> Play or set a tone
0 Play (play one cycle)
1Set
2 Stop