Synxcom SM9234D, User Manual

Page: 85 / 216

AT Commands
Page 85
Modem is in answer machine mode and an extension goes off-hook
AT-STE=2
AT+FCLASS=8
OK
<DLE>h
Local handset on-hook
<DLE>R Ring
AT+VLS=1
OK
AT+VSM=1,7200,0,0
T+VTX
Starts to play greeting message
<DLE>P User picks up extension
<DLE>! DTE send abort to end playback
AT+VLS=0 DTE hangs up
Automated system that needs to periodically use the line while giving the voice user the
highest priority
A common use for these features would be an automated system that needs to
periodically use the line while giving the voice user the highest priority.
The automated system would make a connection when the line is free. It would do
this without disturbing the line if the line is in use. The automated system would
periodically retry the connection until the line is free. Once the line is free it would
dial and make its connection. If a voice user wishes to use the line while the
modem is connected. The modem will drop the line and give the line to the user.
The modem will then try to regain control of the line by once again periodically
retrying to establish a connection.
AT-STE=7
OK
ATDT5551212
CONNECT
Sometime later, the user picks
up phone
NO CARRIER
ATS86?
25
OK
Delay 30 seconds
ATDT5551212
LINE-IN-USE
Try again some time later user
hangs up the phone
CONNECT