340 Matrix PRASAR UCS System Manual
Select the Vocoders in the order of their preference, for MoH Vocoder Preference 1, MoH Vocoder
Preference 2 and MoH Vocoder Preference 3.
If required, you can customize the MoH to be played as per your requirement. For detailed instructions,
see “MoH Management”.
Quality of Service (QoS)
Click Quality of Service (QoS) to expand.
• Quality of Service (QoS): QoS refers to priority of IP packets on network layer. It can be programmed for
both signaling (SIP) and media (Voice, Video and Fax). Configure the following types QoS:
• SIP DiffServe/ToS: The system sends all the SIP signaling messages with this QoS setting. This field
defines the priority bits for SIP messages. The Valid DiffServe range is from 00-63, default: 26
• Voice DiffServe/ToS: The system sends all the Voice packets with this QoS setting. This field defines
the priority bits for Voice packet. The Valid DiffServe range is from 00-63, default: 46
• Video DiffServe/ToS: The system sends all the Video packets with this QoS setting. This field defines
the priority bits for Video packet. The Valid DiffServe range is from 00-63, default: 46
• Fax DiffServe/ToS: The system sends all the Fax packets with this QoS setting. This field defines the
priority bits for Fax packet. The Valid DiffServe range is from 00-63, default: 46
QoS parameters are applicable for all packets (SIP/ Media) leaving both LAN and WAN port as well as
TCP connection.
SIP 100rel
Click SIP 100rel to expand.
• Use 100rel: Select this check box, if you want to support reliable transmission of (SIP) provisional
responses and if you want the Vocoder module to use 100rel for reliable transmission of SIP provisional
responses and to use PRACK (Provisional Acknowledgment). Default: Disabled.
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