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Prestige 2602HW Series User’s Guide
136 Chapter 10 Voice Screens
Figure 54 QoS
The following table describes the labels in this screen.
10.6 Phone
You can configure the volume, echo cancellation and VAD settings for each individual phone
port on the Prestige. You can also select which SIP account to use for making outgoing calls.
10.6.1 Voice Activity Detection/Silence Suppression
Voice Activity Detection (VAD) detects whether or not speech is present. This lets the
Prestige reduce the bandwidth that a call uses by not transmitting “silent packets” when you
are not speaking.
Table 35 QoS
LABEL DESCRIPTION
SIP TOS Priority Type a priority for voice transmissions. The Prestige applies Type of Service
priority tags with this priority to voice traffic that it transmits. Priorities 6 and 7 are
reserved for network control traffic. It is recommended that you use priority 5 for
SIP.
RTP TOS Priority Type a priority for voice transmissions. The Prestige applies Type of Service
priority tags with this priority to RTP traffic that it transmits. Priorities 6 and 7 are
reserved for network control traffic. It is recommended that you use priority 5 for
RTP.
Voice VLAN ID Enable VLAN tagging if the Prestige needs to be a member of a VLAN group in
order to communicate with the SIP server. Your LAN and gateway must also be set
up to use VLAN tags. Some switches also give priority to voice traffic based on its
VLAN tag.
Type the VLAN ID (VID) from 0 to 4095 for the Prestige to add to voice Ethernet
frames that it sends out to the network.
Disable VLAN tagging if the Prestige does not need to be a member of a VLAN
group to communicate with the SIP server.
Back Click Back to return to the previous screen.
Apply Click Apply to save your changes back to the Prestige.
Cancel Click Cancel to begin configuring this screen afresh.