DVG-7111S
User’s Manual
ADVANCED
D-Link Systems, Inc.
36
3-2-1-4 Codec
ADVANCED
→
VoIP
→
Codec
Preferred Codec Type:
Select a preferred codec type for all calls. Since different voice codecs have
different compression ratios, the sound quality and occupied bandwidths are also different. The factual
codec may determine by the called party. It is recommended that you use the default provided (G.723.1)
codec because it occupies less bandwidth and provides better sound quality.
Jitter Buffer:
Enter the jitter of receiving packets.
Silence Detection / Suppression:
Check the box to enable the silence packets and send less voice
data (package) during the silent period while talking.
Echo Canceling:
Check the box to remove echo and improve voice quality during conversation.
RTCP-XR:
Enable RTCP-XR(RFC-3611) to report network quality.
FXO Echo Tail:
The greater value, the more possibly FXO can avoid echo. But it may cause poor voice
quality. Keep the default value
“6” would be recommended.
Codec:
Check the box to codec for the VoIP TA to support. All codecs are selected and supported by
default. You can un-check the box that is not used.
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