SpectraLink 8440 - Voice

Spectralink 84-Series Series Wireless Telephones Administration Guide
1725-86984-000_P.docx
September 2016 84
<voice/>
The <voice/> parameter controls the settings related to the audio on the handset.
Table 8-2: Voice Parameters
Parameter
Permitted Values
Default
voice.txPacketDelay
1
low, normal, Null
Null
If set to normal or Null, no audio parameters are changed.
If set to low and there are no precedence conflicts, the following changes are made:
• voice.codecPref.G722="1"
• voice.codecPref.G711_Mu="2"
• voice.codecPref.G711_A="3"
• voice.codecPref.<OtherCodecs>=""
• voice.audioProfile.G722.payloadSize="10"
• voice.audioProfile.G711Mu.payloadSize= "10"
• voice.audioProfile. G711A.payloadSize= "10"
• voice.aec.hs.enable="0"
• voice.ns.hs.enable="0"
voice.txPacketFilter
1
0 or 1
0
If 0, no Tx filtering is performed. If 1, narrowband Tx high pass filter is enabled.
1
Change causes handset to restart or reboot.
<rxQoS/>
The following table lists the jitter buffer parameters for wired network interface voice traffic,
wireless network interface voice traffic, and push-to-talk interface voice traffic.
Caution: Do not change these settings.
Changing any rxQoS settings can impair system operation. Do not change any
rxQoS parameters without prior consultation with Spectralink Technical Support.
Table 8-3: Voice Jitter Buffer Parameters
Parameter
Permitted Values
Default
voice.rxQoS.avgJitter
1
voice.rxQoS.maxJitter
1
0 to 80
0 to 200
20
160
The average and maximum jitter in milliseconds for wired network interface voice traffic.
avgJitter – The wired interface minimum depth will be automatically configured to adaptively handle this level of
continuous jitter without packet loss.
maxJitter – The wired interface jitter buffer maximum depth will be automatically configured to handle this level
of intermittent jitter without packet loss.
Actual jitter above the average but below the maximum may result in delayed audio play out while the jitter buffer
adapts, but no packets will be lost. Actual jitter above the maximum value will always result in packet loss. Note
that if legacy voice.audioProfile.x.jitterBuffer.* parameters are explicitly specified, they will be used
to configure the jitter buffer and these voice.rxQoS parameters will be ignored.