PioneerPOS G24-LC 用户手册
Chapter 3: AT Commands Reference
April 15, 2008
G24-L AT Commands Reference Manual
3-175
+VTD, Tone Duration
This command handles the selection of tone duration. An integer <n> defines the length of tones
emitted as a result of the +VTS command. This command does not affect the D (dial) command.
(Refer to
emitted as a result of the +VTS command. This command does not affect the D (dial) command.
(Refer to
Any value other than zero causes a tone of duration <n> 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.
The following table shows the +VTD parameters.
Example
AT+VTD=?
+VTD: (0-600)
OK
AT+VTD?
+VTD: 5
OK
AT+VTD=10
OK
Command Type
Syntax
Response/Action
Remarks
Set
+VTD=<n>
OK
+CME ERROR: <err>
The Set command sets the tone
duration.
duration.
Read
+VTD?
<n>
+CME ERROR: <err>
The Read command displays the
current tone duration.
current tone duration.
Test
+VTD=?
+VTD: (list of
supported <n>s)
+CME ERROR: <err>
The Test command displays the list of
supported tone durations.
supported tone durations.
Table 3-117: +VTD Parameters
<Parameter>
Description
<n>
Defines the length of tones emitted by the +VTS command.
0-600
0-600
Multiples of 100 msec (0 is equivalent to 1, that is, 100 msec)
The default is 5 multiples of 100 msec.