AudioCodes Mediant 4000 SBC User Manual page 338

CHAPTER 17 Quality of Experience
Threshold
Crossing
Yellow to Red
(Major alarm)
Red to Yellow
(Minor alarm)
Red to Green
(alarm
cleared)
Yellow to
Green (alarm
cleared)
Each time a voice metric threshold is crossed (i.e., color changes), the device can do the following
depending on configuration:
■ Report the change in the measured metrics to AudioCodes' OVOC. OVOC displays this call
quality status for the associated link (IP Group, Media Realm, or Remote Media Subnet). To
configure the OVOC's address, see
■ Depending on the crossed threshold type, you can configure the device to reject calls to the
destination IP Group or use an alternative IP Profile for the IP Group. For more information, see
Configuring Quality of Service
■ Alternative routing based on measured metrics. If a call is rejected because of a crossed
threshold, the device generates a SIP 806 response. You can configure this SIP response
code as a reason for alternative routing (see
Routing Reasons).
For your convenience, the device provides pre- configured Quality of Experience
Profiles. One of these pre- configured profiles is the default Quality of Experience
Profile, which is used if you do not configure a Quality of Experience Profile.
The following procedure describes how to configure Quality of Experience Profiles through the Web
interface. You can also configure it through other management platforms:
■ Quality of Experience Profile table: ini file [QoEProfile] or CLI (configure voip > qoe
qoe-profile)
■ Quality of Experience Color Rules table: ini file [QOEColorRules] or CLI (configure
voip > qoe qoe-color-rules)
➢
To configure a QoE Profile:
1. Open the Quality of Experience Profile table (Setup menu > Signaling & Media tab > Media
folder > Quality of Experience > Quality of Experience Profile).
2. Click New; the following dialog box appears:
Calculation
The change occurs if the measured metric crosses the
configured Major threshold only (i.e., hysteresis is not used).
The change occurs if the measured metric crosses the
configured Major threshold with hysteresis configured for the
Major threshold.
The change occurs if the measured metric crosses the
configured Minor threshold with hysteresis configured for the
Minor threshold.
The change occurs if the measured metric crosses the
configured Minor threshold with hysteresis configured for the
Minor threshold.
Configuring the SEM
Rules.
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Mediant 4000 SBC | User's Manual
Server.
Configuring SIP Response Codes for Alternative
Threshold
based on
Example
2
2.1 (i.e., 2 +
0.1)
4.1 (i.e., 4 +
0.1)
4.1 (i.e., 4 +
0.1)