EXFO MaxTester MAX-630 - Manual (Page 83)

Running DSL/IP Tests and Viewing Results
VDSL2/ADSL2+ Multi-play Test Set 77
VoIP Call
Threshold Settings
The Threshold Settings page allows you to set the
VoIP test threshold parameters.

Avg. MOS is the average Mean Opinion Score,
which provides a relative measurement of VoIP
call quality.

Avg. R-Factor or average R-Factor score is a VoIP
transmission quality rating derived from multiple
VoIP metrics, including latency, jitter, and loss.

Avg. Latency is the maximum average threshold
time delay (in ms) allowed to deliver the data.

Avg. Jitter the average variation (in ms) in the
packet transit delay of received packets.

Type is a read-only field displaying the threshold limit: either Minimum
or Maximum.
To set threshold values:
1. Press the up/down arrow keys to highlight the desired parameter.
2. Press on a value to open the alphanumeric editor screen and use
the navigation keys to scroll through.
3. Press to select each value and use the function keys to complete
your selection.
4. Press to confirm and close your selections.