Configuring Voice Vlan - D-Link DGS-3100 SERIES User Manual

Configuring Voice VLAN

Voice VLAN enables network administrators to improve VoIP service by configuring ports to carry IP voice traffic from IP
phones on a specific VLAN. VoIP traffic has a preconfigured OUI prefix in the source MAC address. Network
administrators can configure VLANs on which voice IP traffic is forwarded. Non-VoIP traffic is dropped from the Voice
VLAN in Auto Voice VLAN Secure mode. Voice VLAN also provides QoS, ensuring that the quality of voice does not
deteriorate if the IP traffic is received unevenly. The system supports one Voice VLAN.
There are two operational modes for IP Phones:

IP phones are configured with VLAN-mode as enabled, ensuring that tagged packets are used for all
communications.

If the IP phone's VLAN-mode is disabled, the phone uses untagged packets. The phone uses untagged packets
while retrieving the initial IP address through DHCP. The phone eventually uses the Voice VLAN and begins
sending tagged packets.
This section contains the following topics:

Defining Voice VLAN Global Settings

Defining Voice VLAN Port Settings

Defining OUIs

Defining Voice VLAN Global Settings
The Voice VLAN Global Setting Page displays the parameters for creating and configuring the Voice VLAN global settings.
1. Click L2 Features > Voice VLAN > Global Setting. The Voice VLAN Global Setting Page opens:
The Voice VLAN Global Setting Page contains the following fields:
Field
Voice VLAN Setting
VID
DGS-3100 Series Gigabit Stackable Managed Switch User Manual
Figure 0–40 Voice VLAN Global Setting Page
Description
Specifies the action to take. The possible field values are:

Create — Creates the Voice VLAN.

Delete — Removes Voice VLAN from the device. This is the default.
Selects the Voice VLAN ID number.
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