Motorola UbiSurf SM56 At Commands Reference Manual page 27

Table 4: AT+ (Plus) Commands
Command Command Option Option
Command Command Option Option
p options:
0
q options:
0
+VTD
Data/Fax/Speakerphone modem only
+VTDn
+VTS
Data/Fax/Speakerphone modem only
D
{t,n}
{f,g,n}
Example:
+VTX
Data/Fax/Speakerphone modem only
Motorola Confidential Proprietary
Description Description
Description Description
Parameter p specifies compression and expansion of
periods of silence. These parameters are not imple-
mented in Release 1.0. You may leave them blank or
enter the value 0.
Disable
Parameter q specifies compression and expansion of
periods of silence. These parameters are not imple-
mented in Release 1.0. You may leave them blank or
enter the value 0.
Disable
Dual Tone Multi-Frequency (DTMF) Tone Dura-
tion
Generates tone for n/100 seconds; n = 0-255.
Default=100.
DTMF Tone Generation Properties
+VTS accepts multiple options, separated by com-
mas, of any of the following types. Use square or
curly brackets as shown.
Generate default DTMF Tone, default duration.
t specifies a DTMF tone; t = 0-9
n specifies tone duration n/100 seconds; n = 1-500
f and g specify a tone pair, f Hz and g Hz; in the
range n
Specifies tone-pair duration n/100 seconds; n = 1-
500
AT+VTS=4,{},[1000,1300,50],8,{*,5},[,,100],5
This example specifies the following sequence:
1. Play DTMF 4 for the duration stored in +VTD
2. Play silence for the duration stored in +VTD
3. Play tone pair at 1000 Hz and 1300 Hz for 500 ms
4. Play DTMF 8 for a duration stored in +VTD
5. Play DTMF * for 50 ms
6. Play silence for 1 second
7. Play DTMF 5 for the duration stored in +VTD
Enter Voice-Transmission Mode
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