User manual

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Setting” > “Media” and the following setting parameters are displayed:
A. RTP Port (Range)
This parameter is used to specify the UDP of the RTP and used with the router port for mapping.
Note: The terminal will use multiple pairs of RTPs (depending on the number of lines that the
terminal supports). The value of this parameter ranges from 5500 to 5520.
B. Packet Length(ms)
This parameter indicates the duration of sending a network packet. If this parameter is null, it
indicates that the default value is 20ms. It is used to specify the size of the media packet. The unit is
ms (the actual number of bytes depends on the compression algorithm).
C. Jitter Delay Processing Mode
This parameter is used to specify the algorithm model of the jitter delay buffer. The “Adaptive”
mode should be set. Other modes are only used for tests and should not be set in actual applications.
D. Media QoS
Quality of Service (QoS) is a network’s capacity to provide priority services, including the
special bandwidth, jitter control and delay (used for real-time and interactive traffic), and