Port Advanced Setting - SMC Networks Barricade SMC7908VoWBRA User Manual

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ONFIGURING THE

Port Advanced Setting

There are 8 advanced functions that can be configured in this page.
• Volumn Gain control: Two modes are available. The fixed gain control
means the device is supported to supply a constant level of
amplification. The adaptive mode means a specified power level is
produced at the output during periods of active speech.
• Jitter Buffer: Three jitter modes are available. The fixed mode, which
is the default mode, is a simple first in first out mode, with a fixed jitter
buffer delay. The adaptive mode optimizes the size of the jitter buffer
delay in response to network conditions. The sequential mode is also a
fixed jitter buffer delay mode, but in this mode the jitter buffer
function looks at the packet number for dropped or out of sequence
packet problems.
• Jitter Buffer Delay: This parameter represents the delay in milliseconds
that the jitter buffer waits before it transmits the data samples that are
collected from the host processor to the CODEC.
• Echo Canceller Delay: This is the function that filters out echoes
occurred during periods of active speech.
• VAD (Voice Activity Detection): If this box is checked, only a certain
level of voice volume will be send out as voice packets. This function
is designed to save the bandwidth.
• CNG (Comfort Noise Generation): Check this box to enable the
Comfort Noise Generation function. When no one is talking on a call
this feature will generate comfort noise in the background so you know
the call is active.
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