Administrator Guide - SoundPoint IP / SoundStation
®
IP
Optimization
102
Copyright © 2005 Polycom, Inc.
4.6.1.8.10 Voice Activity Detection <VAD/>
These settings control the performance of the voice activity detection (silence suppres-
sion) feature.
4.6.1.9 Quality of Service <QOS/>
These settings control the Quality of Service (QOS) options.
4.6.1.9.1 Ethernet IEEE 802.1p/Q <Ethernet/>
These settings control the 802.1p/Q user_priority field.
4.6.1.9.1.1 RTP <RTP/>
These parameters apply to RTP packets.
4.6.1.9.1.2 Call Control <CallControl/>
These parameters apply to call control packets, such as the network protocol signaling.
Attribute
Permitted
Values
Default
Interpretation
voice.vadEnable
0, 1
0
If set to 1, enable VAD.
voice.vadThresh
integer from
0 to 30
15
The threshold for determining what is active
voice and what is background noise in dB. This
does not apply to G.729AB codec operation
which has its own built-in VAD function.
Attribute
Permitted
Values
Default
Interpretation
qos.ethernet.rtp.user_priority
0-7
5
User-priority used for RTP packets.
Attribute
Permitted
Values
Default
Interpretation
qos.ethernet.callControl.user_priority
0-7
5
User-priority used for call con-
trol packets.