Soundwin VoIP Voice Gateway User Manual page 55

Item
Silence Compression:
(VAD)
Voice Codec option:
Dial Complete Tone:
Dial Termination key:
FXS Impedance:
FXO AC Impedance:
Phone (Line) in/out
volume:
FXO Tx/Rx Gain:
UK PSTN release tone
detection:
FXS/FXO Flash detection
and generation duration :
Ring Frequency:
DTMF tone power:
Description
If this function is enabled, when silence is occurred for a period of
time, no data will be sent across the network during this period in
order to save bandwidth. (If you use Asterisk, please disable
Silence Compression, it maybe make you call disconnect.)
The Codec is used to compress the voice signal into data
packets. Each Codec has different bandwidth requirement. There
are four kinds of Codec, G.723, G.729AB, G.711_u and G.711_A.
The default value is G.723.
When you use the VoIP call, you will heard "DuDu" voice that is
dial complete tone. If you don't want to heard that tone , you can
disable it.(default is enable).
Setting Termination key to speed up VoIP dial. Select "*" or "#" to
Termination key.
The FXS provides 600/900 OHM impedances for selection.
The FXO provides wild and complex ac termination impedances
for selection.
You can adjust the Phone (Line) in/out volume, range from -9db to
9db.
(If you adjust too bigger, maybe generation some ECHO or noise)
You can adjust the FXO Tx/Rx Gain , range from -6db to 6db.
(If you adjust too bigger, maybe generation some ECHO or noise)
When you use the Gateway to UK, you can Enable this selection
to detection release tone
Flash Detection: Let you change flash detection (milliseconds) of
Gateway when phone generate flash to FXS.
Flash Generation: Let you change flash generation time
(milliseconds) for PBX detection.
You can configure how long the Ring Frequency do you want to
use.
Sometimes you input DTMF, but no request. You can adjust this
function, range from -6db to +6db.
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