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User's Manual 16. Quality of Experience
Version 6.8 239 Mediant 500 E-SBC
16 Quality of Experience
This chapter describes how to configure the Quality of Experience feature.
16.1 Reporting Voice Quality of Experience to SEM
The device can be configured to report voice (media) Quality of Experience (QoE) to
AudioCodes' Session Experience Manager (SEM) server, a plug-in for AudioCodes EMS.
The reports include real-time metrics of the quality of the actual call experience, which are
then processed by the SEM.
SEM is a VoIP-quality monitoring and analysis tool. SEM provides comprehensive details
on voice traffic quality, allowing system administrators to quickly identify, fix and prevent
issues that could affect the voice calling experience in enterprise and service provider VoIP
networks. IT managers and administrators can employ SEM in their VoIP networks to
guarantee effective utilization, smooth performance, reliable QoS levels, and SLA
fulfillment.
Note: For information on the SEM server, refer to the EMS User's Manual .
16.1.1 Configuring the SEM Server
The device can be configured to report QoE voice metrics to a single SEM server or to two
SEM/EMS servers deployed in a Geographic Redundancy, High-Availability (HA) mode.
Geographic Redundancy is when each SEM/EMS server is located in a different network
subnet and has its own IP address. Thus, for the device to report QoE to both servers, you
need to configure the IP address of each server.
For regular HA mode, when both EMS/SEM servers are located in the same subnet, a
single EMS/SEM server (global, virtual) IP address is used for all network components
(EMS clients and managed devices). Thus, in such a setup, you need to configure only this
IP address.
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To configure the SEM server to where the device sends voice metrics:
1. Open the Session Experience Manager Server page ( Configuration tab > VoIP menu
> Quality of Experience > Session Experience Manager Server ).
Figure 16-1: Session Experience Manager Server Page
2. In the 'Server IP' field, enter the primary SEM server's IP address.
3. If Geographical-Redundancy HA mode exists, in the 'Redundant Server IP' field, enter
the secondary SEM server's IP address.
4. In the 'Interface Name' field, enter the device's IP network interface on which the
device sends the reports to the SEM server.
5. Click Submit , and then save ("burn") your settings to flash memory.