EXFO MaxTester 635 - Manual (Page 297)

Running DSL/IP Tests and Viewing Results
Copper and VDSL2/ADSL2+ Multi-play Test Set 289
VoIP Call

VoIP Statistics display histograms showing the current values of each
of the following:

Avg. MOS - average Mean Opinion Score, which provides a relative
measurement of VoIP call quality.

Avg. R-Factor - average R-Factor score, which is a VoIP
transmission quality rating derived from multiple VoIP metrics,
including latency, jitter, and loss.
To select the parameter values:
1. Press the up/down arrow keys to highlight the desired parameter.
2. Press the left/right arrow keys to view and select the options.
OR
3. Press on a value to open a list box of options or the alphanumeric
editor screen and use the navigation keys to scroll through.
4. Press to confirm the value.
Enter Address
The alphanumeric editor screen allows you to change
parameter values and save changes to a new profile.
To use the editor screen:
1. Press the up/down left/right arrows to navigate the
on-screen keyboard.
2. Press to confirm each selection.
3. Use the on-screen function buttons to create or
edit the address.