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Matrix SPARSH VP710 User Guide
background sound is consistent throughout the call and the listener does not think that the line has released. The
purpose of VAD and CNG is to maintain an acceptable perceived QoS while simultaneously keeping the
transmission costs and bandwidth usage as low as possible.
VAD is used to send CN packets when the phone detects a “silence” period.
CNG is used to generate comfortable noise when the phone receives CN packets from the other side.
For example:
•
A is talking with B.
A: VAD=1, CNG=1
B: VAD=0, CNG=1
•
If A mutes the call, since VAD=1, A will send CN packets to B. When receiving CN packets, B will generate
comfortable noise.
•
If B mutes the call, since VAD=0, B will not send CN packets to A. So even if CNG=1 (B), A will not hear
comfortable noise.
Procedure
CNG can be configured using the configuration files or locally.
To configure CNG via web user interface:
•
Click on
Settings->Voice
.
Configuration File
<MAC>.cfg
Configure
comfort noise generation
.
For more information, refer
“Appendix D - Configuration
Parameters”
Local
Web User Interface
Configure
comfort noise generation
.
Navigate to
:
http://<phoneIPAddress>/servlet?m=
mod_data&p=settings-voice&q=load
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Страница 447: ...Matrix SPARSH VP710 User Guide 439 Select the desired value from the Send Video list Click Confirm to save the change ...
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Страница 476: ...468 Matrix SPARSH VP710 User Guide Select the desired value from the Logon Wizard list Click Confirm to save changes ...
Страница 494: ...486 Matrix SPARSH VP710 User Guide The following shows a video call has been muted ...
Страница 498: ...490 Matrix SPARSH VP710 User Guide Select the desired value from the PswDial list Click Confirm to save the change ...
Страница 544: ...536 Matrix SPARSH VP710 User Guide Select the desired value from the RPort list Click Confirm to save the change ...
Страница 568: ...560 Matrix SPARSH VP710 User Guide Tap to save the change or to cancel ...
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