User manual

VOPTech GoIP User Manual

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

improvement of the packet loss ratio. This parameter is used to mark the specified QoS label

for the voice packet to increase the network service quality.

Note: For details about media encryption and media NAT penetration, refer to 3.5.6 Firewall penetration.

3.5.5 Voice Coding and Sequence

This parameter is used to modify the compression coding according to the requirements of the

service provider.

If a compression coding is ticked, it indicates that the compression coding is available. The

UP and DOWN are used to adjust the priority of the selected voice compression coding.