US Robotics 56K USB Modem User Manual page 120

AT+VSD=128,0
OK
<DLE>-R
AT+VLS=1
OK
The TAD next plays its greeting message, issues a beep, and records the caller's message.
Command/Response
AT+VTX
CONNECT
<Data>
<DLE><ETX>
OK
AT+VTS=[933,0,120]
OK
AT+VSD=128,50
OK
AT+VLS=5
OK
AT+VRX
CONNECT
<Data>
The caller leaves a message and hangs up. The modem detects silence for a specified period of time, and
then notifies the DTE that the message being recorded has ended.
Command/Response
<DLE>-s
<DLE>-!
<DLE><ETX>
ATH
OK
DTE selects normal silence detection sensitivity, and a silence detec-
tion interval of 0 seconds. Disables silence detection.
DCE responds.
DCE detects another ring and notifies DTE.
The modem answers the call.
DCE is off-hook.
DTE selects voice transmit mode.
DCE responds.
DTE plays greeting through modem to remote caller.
DTE indicates end of voice transmit data.
DCE acknowledges switch back to voice command state.
DTE annotates greeting message with a 1.2 second beep.
DCE responds.
DTE selects normal silence detection sensitivity and a silence detection
interval of 5 s. Enables silence detection.
DEC responds.
The speaker is attached to the system, and the modem is off-hook.
DCE is off-hook.
DTE selects voice receive mode.
DCE agrees.
DCE delivers <DLE> shielded voice message to DTE.
DCE issues presumed end of message after silence detection interval has
elapsed.
DTE signals end of voice receive state.
DCE ends voice transmission to DTR, with this code, and returns back to
voice command state.
DTE issues standard command to terminate call. Speakerphone goes on-
hook, speaker and microphone are detached from system, and modem
returns to data mode (+FCLASS = 0).
DCE responds.
Description
Description
Command Reference - 114
56K USB Modem
User Guide