ZyXEL Communications MAX-306, User Manual, Page: 158 / 405

Chapter 12 The Service Configuration Screens
User’s Guide
158
12.3 QoS
Network traffic can be classified by setting the ToS (Type Of Service) values at the
data source (for example, at the WiMAX Device) so a server can decide the best
method of delivery, that is the least cost, fastest route and so on.
Virtual Local Area Network (VLAN) allows a physical network to be partitioned into
multiple logical networks. Only stations within the same group can communicate
with each other.
Your WiMAX Device can add IEEE 802.1Q VLAN ID tags to voice frames that it
sends to the network. This allows the WiMAX Device to communicate with a SIP
server that is a member of the same VLAN group. Some ISPs use the VLAN tag to
identify voice traffic and give it priority over other traffic.
Click VOICE > Service Configuration > QoS to set up and maintain ToS and
VLAN settings for the WiMAX Device. QoS (Quality of Service) refers to both a
network's ability to deliver data with minimum delay and the networking methods
used to provide bandwidth for real-time multimedia applications.
Figure 72 VOICE > Service Configuration > QoS
The following table describes the labels in this screen.
Table 59 VOICE > Service Configuration > QoS
LABEL DESCRIPTION
TDS
SIP TOS Priority
Setting
Enter the priority for SIP voice transmissions. The WiMAX Device
creates Type of Service priority tags with this priority to voice traffic
that it transmits.
RTP TOS
Priority Setting Enter the priority for RTP voice transmissions. The WiMAX Device
creates Type of Service priority tags with this priority to RTP traffic that
it transmits.
VLAN Tagging