AT Commands Reference Manual - wireless netcontrol GmbH

Chapter 3: AT Commands Reference
Example
AT+CRTT=6,0
//Ring type number 6, operation 0 (play)
OK
//When 6 is in the supported range
AT+CRTT=6,2
//Ring type number=6, operation 2 (stop)
OK
AT+CRTT=?
+CRTT: (0-89),(0-2)
OK
AT+CRTT?
+CRTT: 6 //Ring type number 6
AT+CRTT=5,4
//Invalid operation
+CME ERROR:
+VTD, Tone Duration
This command handles the selection of tone duration. An integer defines the length of tones
emitted as a result of the +VTS command. This command does not affect the D (dial) command.
(Refer to “D, Dial Command” on page 3-11)
Any value other than zero causes a tone of duration in multiples of 100 msec.
In this command, the new value is erased after power down.
Note: In GSM, the tone duration value can be modified depending on the specific network.
Command Type Syntax Response/Action Remarks
Set +VTD= OK.
+CME ERROR:
Read +VTD?
+CME ERROR:
Test +VTD=? +VTD: (list of
supported s)
+CME ERROR:
The Set command sets the tone
duration.
The Read command displays the
current tone duration.
The Test command displays the list of
supported tone durations.
The following table shows the +VTD parameters.
Table 3-130: +VTD Parameters
Description
Defines the length of tones emitted by the +VTS command.
0-600 Multiples of 100 msec (0 is equivalent to 1, that is, 100 msec)
The default is 5 multiples of 100 msec.
Example
AT+VTD=?
+VTD: (0-600)
April 15, 2010 H24 - AT Commands Reference Manual 3-199