
Chapter 9 The VoIP General Screens
9.2 Media
Click VoIP > General > Media to set up and maintain global VoIP settings.
Figure 84 MediaThe following table describes the labels in this screen.
Table 66 MediaLABEL | DESCRIPTION | |
Port Range |
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Media Port Start | Enter the listening port number(s) for RTP traffic on the WiMAX Device, if your | |
Media Port End | 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. | |
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Codec Packetization Time Settings | ||
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| |
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. | |
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Advanced |
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| |
Voice Jitter Buffer | Voice jitter is a variation in delay of RTP packets delivery. This could cause | |
Type | 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. | |
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| |
Voice Jitter Buffer | Select the maximum number of milliseconds of voice traffic the WiMAX Device | |
Length | can help to smooth out the jitter in order to ensure good voice quality for your | |
| conversations. | |
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| 153 |
WiMAX Device Configuration User’s Guide | |
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