ZyXEL Communications P-2602 manual Vlan, SIP QoS Screen, Voice 163

Models: P-2602

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P-2602H(W)(L)-DxA Series User’s Guide

The DSCP value determines the forwarding behavior, the PHB (Per-Hop Behavior), that each packet gets across the DiffServ network. Based on the marking rule, different kinds of traffic can be marked for different priorities of forwarding. Resources can then be allocated according to the DSCP values and the configured policies.

11.10.3 VLAN

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 ZyXEL Device can add IEEE 802.1Q VLAN ID tags to voice frames that it sends to the network. This allows the ZyXEL 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.

11.10.4 SIP QoS Screen

Use this screen to maintain ToS and VLAN settings for the ZyXEL Device. To access this screen, click VoIP > SIP > QoS.

Figure 90 SIP > QoS

Each field is described in the following table.

Table 56 SIP > QoS

LABEL

DESCRIPTION

 

 

SIP TOS Priority

Enter the priority for SIP voice transmissions. The ZyXEL Device creates Type of

Setting

Service priority tags with this priority to voice traffic that it transmits.

RTP TOS Priority

Enter the priority for RTP voice transmissions. The ZyXEL Device creates Type of

Setting

Service priority tags with this priority to RTP traffic that it transmits.

Voice VLAN ID

Select this if the ZyXEL Device has to be a member of a VLAN to communicate

 

with the SIP server. Ask your network administrator, if you are not sure. Enter the

 

VLAN ID provided by your network administrator in the field on the right. Your LAN

 

and gateway must be configured to use VLAN tags.

 

Otherwise, clear this field.

 

 

Chapter 11 Voice

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ZyXEL Communications P-2602 manual Vlan, SIP QoS Screen, Voice 163