si2439-a-gm Silicon Laboratories, si2439-a-gm Datasheet - Page 40

• Manufacturer Part Number: si2439-a-gm
• Description: V.92 And V.34 Isomodem With Global Daa
• Manufacturer: Silicon Laboratories

Si2494/39
40
+VTS = [<freq1>,
<freq2>, <dur>]
+VTX
Command
Table 10. Basic AT Command Set (Command Defaults in Bold) (Continued)
DTMF and Tone Generation.
This command can be used to produce DTMF tones, single-frequency tones, and double-
frequency tones. Note that the bracket characters are required for correct operation.
<freq1>
<freq2>
<dur>
Transmit Voice Samples.
Used for sending digitized voice samples from host memory through the UART interface.
The +VSM command determines the format of the samples. Multiple routing options are
available.
Frequency one, which has a range of 0, 200-3200 Hz.
Frequency two, which has a range of 0, 200-3200 Hz.
Duration of the tone(s) in 10 ms units.
Rev. 1.0
Action