The Conference Summary/Trend report shows a snapshot of the higher-level media-quality trends in conference calls in the network. It includes the following metrics:
- Packet Loss
- Round Trip Time
- Network MOS
- Network MOS Degradation
- Conversational MOS
- Sending MOS
- Listening MOS
At the top of the report, each of these metrics is shown in a summary table. Below the table are graphs for each metric, plotted according to the granularity specified in the report. Each plot point in the graphs is labeled with the number of samples reported during that time period, as well as the average value of those samples. You can click each plot point in the graph to see a call list for the period represented by that plot point.
In the table at the top of the main report, you can click the Network MOS, Network MOS Degradation, Conversational MOS, Sending MOS, or Listening MOS to see a graph that shows the distribution of scores for that metric.
|In general, a sample size of less than 30 has too large a margin of error to provide a useful mean opinion score (MOS).|
You can view the report with a granularity of hourly, daily, weekly, or monthly. Daily and hourly trends can be useful to see how the network performs during peak daily usage, while weekly and monthly rates can help you see longer-term trends, especially as new users are added or network hardware is updated.
The number of points to be plotted must be between 2 and 24. If you choose a granularity, and start and end times, that would cause there to be more than 10 points to be plotted, the report will truncate the end time to make it fit within the plot point limit.
Additionally, you can filter the data in this report based on the following:
Media Connectivity.Use this to choose only calls that are
directly connected (that is, by users within the enterprise), or
calls that use the A/V Edge service or the HTTP Proxy to be
connected (that is, calls that involve external users).
Pool.Use this filter to limit data shown to just users and
servers associated with a specific Enterprise pool.
Exclude External Calls.Select this to exclude calls where
either the sender or receiver are located outside of the enterprise
network. Note that this is
Trueby default; select
Falseto include external calls in the report.
Client Type.Use this filter to view the quality of calls on
specific client types, such as Office Communicator, Office
Communicator Phone Edition, or Office Communications Server 2007 R2
A/V Conferencing Server.Use this to choose only calls that
go through a specific A/V Conferencing Server, to isolate any
issues a particular server may be causing.
- You receive complaints about media quality in some A/V
conferences. Examining the overall Conferencing Summary\Trends
report, you find no overall performance issues. However, when you
filter to each particular A/V Conferencing Server, you might find
high packet loss in conferences handled by one particular server,
and thus discover the source of the problem.