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
These settings control the performance of the voice activity detection (silence suppres-
sion) feature.
4.6.1.7 Quality of Service
These settings control the Quality of Service (QOS) options.
4.6.1.7.1 Ethernet IEEE 802.1p/Q
These settings control the 802.1p/Q user_priority field.
4.6.1.7.1.1 RTP
These parameters apply to RTP packets.
4.6.1.7.1.2 Call Control
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.