Polycom Version 1.4.x 17 - Manual (Page 94)

Administrator Guide - SoundPoint ® IP / SoundStation
®
IP Optimization
86 Copyright © 2004 Polycom, Inc.
4.6.1.6.10 Voice Activity Detection <VAD/>
These settings control the performance of the voice activity detection (silence suppres-
sion) feature.
4.6.1.7 Quality of Service <QOS/>
These settings control the Quality of Service (QOS) options.
4.6.1.7.1 Ethernet IEEE 802.1p/Q <Ethernet/>
These settings control the 802.1p/Q user_priority field.
4.6.1.7.1.1 RTP <RTP/>
These parameters apply to RTP packets.
4.6.1.7.1.2 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.