PLANET WGSW-28040P - Manual (Page 106)

User’s Manual of WGSW-28040 / 28040P / 28040P4
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4.5.8 Voice VLAN
4.5.8.1 Introduction to Voice VLAN
Voice VLAN is specially configured for the user voice data traffic. By setting a Voice VLAN and adding the ports of the connected
voice equipments to Voice VLAN, the user will be able to configure QoS (Quality of service) service for voice data, and improve
voice data traffic transmission priority to ensure the calling quality.
The switch can judge if the data traffic is the voice data traffic from specified equipment according to the source MAC address
field of the data packet entering the port. The packet with the source MAC address complying with the system defined voice
equipment OUI (Organizationally Unique Identifier) will be considered the voice data traffic and transmitted to the Voice
VLAN.
The configuration is based on MAC address, acquiring a mechanism in which every voice equipment transmitting information
through the network has got its unique MAC address. VLAN will trace the address belongs to specified MAC. By This means,
VLAN allows the voice equipment always belong to Voice VLAN when relocated physically. The greatest advantage of the VLAN
is the equipment can be automatically placed into Voice VLAN according to its voice traffic which will be transmitted at specified
priority. Meanwhile, when voice equipment is physically relocated, it still belongs to the Voice VLAN without any further
configuration modification, which is because it is based on voice equipment other than switch port.
The Voice VLAN feature enables the voice traffic forwarding on the Voice VLAN, then the switch
can classifying and scheduling to network traffic. It is recommands there are two VLANs on a
port - one for voice, one for data.
Before connect the IP device to the switch. The IP phone should configure the voice VLAN
ID correctly. It should be configure through its own GUI.