The Midstream Legs page identifies the RTP traffic flows (or stream legs) on the medianet-enabled devices on your network. A stream leg is a unidirectional stream of packets. An active stream leg is not yet associated with the end-of-call record for a device.
You can filter the information in the Midstream Leg List with the Media Type and Status lists.
The Midstream Leg List provides the following information:
The Mean Opinion Score (MOS) is an industry standard method for gauging call quality. MOS is an estimation of how impairments to a voice signal affect listener perception of call quality.
MOS calculated from medianet data considers only the codec and any packet loss metrics. Other impairment metrics traditionally associated with a MOS, such as latency and jitter buffer loss, are unknown in medianet streams. Therefore, the MOS for medianet streams may be higher (better) than MOS reported from the endpoints, where all impairment metrics are known.
The codec in use for the stream leg, or one of the following descriptions:
This field is disabled by default. Click the Settings link to include the field in the Midstream Leg List.
The IP address of the device that received the stream leg.
The Location of the device that received the stream leg.
The port number through which the device that received the stream leg. This field is disabled by default. Click the Settings link to include the field in the Midstream Leg List.
The Differentiated Services Code Point setting of the incoming RTP packets. Two or more values in this field indicate that the DSCP changed over the course of the stream.
The length of the stream leg.
A link to the Midstream Leg Information page, and to charts representing MOS, packet loss, average jitter, and maximum jitter.
The last time data was processed for the stream leg. The end time appears on the Midstream Leg Information page.
The type of media in the stream leg: Audio or Video.
The percentage of data packets that were lost in transit. These packets were sent but never received at the destination.
The IP address of the device that sent the stream leg.
The Location of the device that sent the stream leg.
The port through which the device sent the stream leg. This field is disabled by default. Click the Settings link to include the field in the Midstream Leg List.
The contents of the SSRC field in the RTP header. Also a unique identifier of the source of the stream leg. This field is disabled by default. Click the Settings link to include the field in the Midstream Leg List.
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