Synway Information Engineering Co., Ltd
RFC2833 Payload
Payload of the RFC2833 formatted DTMF signals on the IP channel. Range of
value: 90~127, with the default value of 101.
RTP Port Range
Supported RTP port range for the IP end to establish a call conversation, with the
lower limit of 6000 and the upper limit of 60000 and the difference between larger
than 2048. The default value is 6000-10000.
Silence
Suppression
Sets whether to send comfort noise packets to replace RTP packets or never to
send RTP packets to reduce the bandwidth usage when there is no voice signal
throughout an IP conversation. The optional values are
Enable
and
Disable
, with
the default value of
Disable
.
Note:
When G723 is selected as CODEC, this configuration setting will turn to
Enable automatically.
Noise Reduction
Once this feature is enabled, the volume of the noise accompanied with the line will
be reduced automatically. The default setting is
Enable
.
JitterMode
Sets the working mode of JitterBuffer. The optional values are
Static Mode
and
Adaptive Mode
, with the default value of
Static Mode.
JitterBuffer
Acceptable jitter for data packets transmission over IP, which indicates the buffering
capacity. A larger JitterBuffer means a higher jitter processing capability but as well
as an increased voice delay, while a smaller JitterBuffer means a lower jitter
processing capability but as well as a decreased voice delay. Range of value:
0~280, calculated by ms, with the default value of 100.
JitterUnderrunLead
Sets the initial delay applied to received packets upon accepting packets later than
the expected value set in JitterBuffer Item. Range of value: 0~280, calculated by
ms, with the default value of
100
,
Note:
Only when JitterMode is set to
Static Mode
will this item be shown.
JitterOverrunLead
Sets the beforehand time inserted if receiving packets is ahead of time (the time of
receiving is earlier than 300 minus the value set in JitterBuffer). Rnage of value:
0~280, calculated by ms, with the default value of
50
,
Note:
Only when JitterMode is set to
Static Mode
will this item be shown.
JitterMin
Sets the minimum delay that can be set by the adaptive jitter function. It must be
smaller than the value set in JitterBuffer. Range of value: 0~280, calculated by ms,
with the default value of 80.
Note:
Only when JitterMode is set to
Adaptive Mode
will this item be shown.
JitterDecreaseRatio
Sets the rate of delay reduction under the adaptive mode. It defines the maximum
percentage of the silence that can be removed in delay reduction. Range of value:
0~100, with the default value of
50
,
Note:
Only when JitterMode is set to
Adaptive Mode
will this item be shown.
JitterIncreaseMax
Sets the maximum delay increased during a silence period. Range of value: 0~280,
calculated by ms, with the default value of
30
,
Note:
Only when JitterMode is set to
Adaptive Mode
will this item be shown.
Voice Gain Output
from IP
Adjusts the voice gain of call from IP to IP. The value must be a multiple of 3. Range
of value: -24~24, calculated by dB, with the default value of 0.
CODEC Setting
Sets CODECs for the IP end to establish a call conversation. The table below
explains the sub-items:
SMG SBO Series Gateway User Manual (Version 1.6.3)
Page 30
