SI2415-D-FT Silicon Laboratories Inc, SI2415-D-FT Datasheet - Page 211
SI2415-D-FT
Manufacturer Part Number
SI2415-D-FT
Description
IC ISOMODEM SYSTEM-SIDE 24TSSOP
Manufacturer
Silicon Laboratories Inc
Specifications of SI2415-D-FT
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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Table 132. TAM PSTN Interrupted Answer – OGM Playback with DTMF Menu Entry (Continued)
Host to Modem Commands / Data
[Voice Stream]
<DLE><ETX>
AT+VGT=128
AT+VSD=129
AT+VLS=15
AT+VSM=4
AT+VLS=0
AT+VTX
Modem to Host Result
Codes/Data
CONNECT
<DLE><u>
<DLE><~>
<DLE><1>
<DLE><~>
<DLE><2>
<DLE><~>
<DLE><3>
<DLE><~>
<DLE><4>
<DLE></>
<DLE></>
<DLE></>
<DLE></>
Rev. 1.3
OK
OK
OK
OK
OK
OK
Set the RS232-to-DAA transmit gain regis-
ter (UB3) for TAM PSTN.
Set sensitivity level for ICM recording
silence detection.
Select G.711U -law PCM, 8-bit, 64 kbps
format. The voice driver will need to track
the OGM format with the OGM PCM file.
Disable voice mode. Used as a transition
point between non-zero +VLS voice
modes.
Setup off-hook voice to PSTN. See
Table 117 on page 190
Trigger transmit operation.
TX Underrun. Appears at the start of +VTX
before transmit data are seen.
Transmit OGM voice stream. During voice
stream capture, the user can adjust the
UB3 value via the <DLE><u> and
<DLE><d> commands. The host voice
driver will need track the number of adjust-
ments and update the +VGT value for
future use.
DTMF 1 digit detected.
DTMF 2 digit detected.
DTMF 3 digit detected.
DTMF 4 digit detected. The password of
1234 has been matched. Abort answer
sequence.
Terminate the transmit operation. The
modem will respond with OK to denote the
return to command mode.
Local Modem Actions
for details.
AN93
211
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