Silicon Laboratories SI2493/57/34/15/04 - Manual (Page 205)

AN93
Rev. 1.3 205
AT+VRX CONNECT
Trigger receive operation. The first byte
after the newline character following the
CONNECT message will be the first data
stream byte.
[Voice Stream]
Receive OGM voice stream. During voice
stream capture, the user can adjust the
UC0 value via the and
commands. The host voice
driver will need track the number of adjust-
ments and update the +VGR value for
future use.
OK
Terminate the receive operation. The
modem will respond with to
mark the end of the data stream. The OK
denotes the return to command mode. A
Handset Lowered Event, timeout, or silence
event can trigger the transmis-
sion.
AT:U0B1,0 OK
Disable Si3000-to-DAA transmit gain path.
This ensures codec tones are not sent to
the FDV and DTMF.
AT:U199|A OK
Mute the microphone and speaker paths to
the codec.
AT:U72,0108 OK
Configure Si3000 Register 1:
Disable speaker driver
Enable line output driver
Disable telephone instrument driver
Disable MBIAS output
AT:U72,05D7 OK
Configure Si3000 Register 5:
20 dB Line In gain
Enable Line In
20 dB MIC input gain
Mute MIC input
Mute telephone instrument input
Enable IIR filter
AT:U72,065E OK
Configure Si3000 Register 6:
0 dB RX PGA gain
Enable Line Out
Disable telephone instrument output
AT:U72,075E OK
Configure Si3000 Register 7:
0 dB RX PGA gain
Enable SPKRL
Mute SPKRR
Table 129. TAM Handset Record OGM (Continued)