Filter
Top Products
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.