ZyXEL MAX318M User Guide - Page 153

Media, VoIP > General > Media

Page 153 highlights

Chapter 9 The VoIP General Screens 9.2 Media Click VoIP > General > Media to set up and maintain global VoIP settings. Figure 84 Media The following table describes the labels in this screen. Table 66 Media LABEL Port Range Media Port Start Media Port End DESCRIPTION Enter the listening port number(s) for RTP traffic on the WiMAX Device, if your VoIP service provider gave you this information. Otherwise, keep the default values. To enter one port number, enter the port number in the both Media Port Start and Media Port End fields. To enter a range of ports, enter the beginning port number of the range in the Media Port Start field and the ending port number in the Media Port End field. Codec Packetization Time Settings G.711, G.729 Select how often (10 to 60 msecs) the WiMAX Device sends an RTP packet for each type of voice coder/decoder (codec) G.711 and G.729. Advanced Voice Jitter Buffer Type Voice jitter is a variation in delay of RTP packets delivery. This could cause strange sound effects. The WiMAX Device can utilize the following types of jitter buffer to minimize the effects of jitter. Dynamic - Jitter buffer size is dynamically changed by RTP packets delivery status. Voice Jitter Buffer Length Static - Jitter buffer size is fixed. Select the maximum number of milliseconds of voice traffic the WiMAX Device can help to smooth out the jitter in order to ensure good voice quality for your conversations. WiMAX Device Configuration User's Guide 153

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Chapter 9 The VoIP General Screens
WiMAX Device Configuration User’s Guide
153
9.2
Media
Click
VoIP > General > Media
to set up and maintain global VoIP settings.
Figure 84
Media
The following table describes the labels in this screen.
Table 66
Media
LABEL
DESCRIPTION
Port Range
Media Port Start
Media Port End
Enter the listening port number(s) for RTP traffic on the WiMAX Device, if your
VoIP service provider gave you this information. Otherwise, keep the default
values.
To enter one port number, enter the port number in the both
Media Port
Start
and
Media Port End
fields.
To enter a range of ports, enter the beginning port number of the range in the
Media Port
Start
field and the ending port number in the
Media Port End
field.
Codec Packetization Time Settings
G.711, G.729
Select how often (
10
to
60
msecs) the WiMAX Device sends an RTP packet for
each type of voice coder/decoder (codec)
G.711
and
G.729
.
Advanced
Voice Jitter Buffer
Type
Voice jitter is a variation in delay of RTP packets delivery. This could cause
strange sound effects. The WiMAX Device can utilize the following types of jitter
buffer to minimize the effects of jitter.
Dynamic
- Jitter buffer size is dynamically changed by RTP packets delivery
status.
Static
- Jitter buffer size is fixed.
Voice Jitter Buffer
Length
Select the maximum number of milliseconds of voice traffic the WiMAX Device
can help to smooth out the jitter in order to ensure good voice quality for your
conversations.