ZyXEL MAX318M User Guide - Page 154

Qos, Table 66, Label, Description

Page 154 highlights

Chapter 9 The VoIP General Screens Table 66 Media (continued) LABEL Packet Loss Concealment DESCRIPTION Packets may be dropped due to an overwhelming amount of traffic on the network. Some degree of packet loss will not be noticeable to the end user, but as packet loss increases the quality of sound degrades. Select this to have the WiMAX Device to improve the voice quality when packet loss occurs. T.38 Static Jitter Length T.38 is an ITU-T standard that VoIP devices use to send fax messages over the Internet. Select the number of milliseconds for the jitter buffer size used for transmitting T.38 fax messages. 9.3 QoS This section describes the features of the Quality of Service (QoS) screen. Click VoIP > General > QoS to set up Type of Service (ToS) and Differentiated Services (Diffserv) settings for voice traffic transmission through the WiMAX Device. Figure 85 QoS The following table describes the labels in this screen. Table 67 QoS LABEL SIP ToS/DiffServ RTP ToS/DiffServ DESCRIPTION Enter the DSCP value you want to mark on all outgoing SIP packets generated by the WiMAX Device for DiffServ-enabled networks. Since DiffServ uses the first 6 bits of the 8-bit IP ToS field to represent the DSCP value, enter here the 6-bit DSCP value you want to mark in hexadecimal (in a format of 0x00), and the WiMAX Device will then automatically append 2 bits '0' to make a whole 8-bit ToS field value for all outgoing SIP packets. For example, if you enter 0x2E, it is 101110 in binary for DSCP. The WiMAX Device converts it to 10111000 in binary and marks on the IP ToS field of all the outgoing SIP packets. Enter the DSCP value you want to mark on all outgoing VoIP data packets (including both RTP and T.38 UDPTL packets) generated by the WiMAX Device for DiffServ-enabled networks. 154 WiMAX Device Configuration User's Guide

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Chapter 9 The VoIP General Screens
WiMAX Device Configuration User’s Guide
154
9.3
QoS
This section describes the features of the Quality of Service (QoS) screen.
Click
VoIP > General > QoS
to set up Type of Service (ToS) and Differentiated Services (Diffserv)
settings for voice traffic transmission through the WiMAX Device.
Figure 85
QoS
The following table describes the labels in this screen.
Packet Loss
Concealment
Packets may be dropped due to an overwhelming amount of traffic on the
network. Some degree of packet loss will not be noticeable to the end user, but
as packet loss increases the quality of sound degrades. Select this to have the
WiMAX Device to improve the voice quality when packet loss occurs.
T.38 Static Jitter
Length
T.38 is an ITU-T standard that VoIP devices use to send fax messages over the
Internet.
Select the number of milliseconds for the jitter buffer size used for transmitting
T.38 fax messages.
Table 66
Media (continued)
LABEL
DESCRIPTION
Table 67
QoS
LABEL
DESCRIPTION
SIP ToS/DiffServ
Enter the DSCP value you want to mark on all outgoing SIP packets generated by
the WiMAX Device for DiffServ-enabled networks. Since DiffServ uses the first 6
bits of the 8-bit IP ToS field to represent the DSCP value, enter here the 6-bit
DSCP value you want to mark in hexadecimal (in a format of 0x00), and the
WiMAX Device will then automatically append 2 bits '0' to make a whole 8-bit
ToS field value for all outgoing SIP packets.
For example, if you enter 0x2E, it is 101110 in binary for DSCP. The WiMAX
Device converts it to 10111000
in binary and marks on the IP ToS field of all the
outgoing SIP packets.
RTP ToS/DiffServ
Enter the DSCP value you want to mark on all outgoing VoIP data packets
(including both RTP and T.38 UDPTL packets) generated by the WiMAX Device for
DiffServ-enabled networks.