How Vqmon Works - Nortel 1120E Administration Manual

80 Voice Quality Monitoring

How VQMon works

When the IP Phone 1120E detects that a particular voice quality metric has
exceeded a threshold (defined in the device configuration file), the IP Phone
sends a message to the server indicating that there is an issue. If the issue
persists then the IP Phone reports another message indicating that there is
an exceeded value at regular intervals. This happens continuously until the
voice quality metric falls below the threshold value. As well, the IP Phone
can send regular reports of the voice quality at time intervals defined in
the device configuration file.
Copyright © 2008, Nortel Networks
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SIP Firmware Release 1.1 for IP Phone 1120E Administration
NN43112-300 02.03 Standard
27 May 2008