Configuring Clock Synchronization Between Device And Sem; Enabling Rtcp Xr Reporting To Sem - AudioCodes MP-11x User Manual


To configure the SEM server address and other related features:
1. Open the Media Quality of Experience page (Configuration tab > VoIP menu >
Media submenu > Media Quality of Experience.
Figure 14-13: Configuring Session Experience Manager
2. In the 'Server IP Address' field, enter the SEM server's IP address.
3. In the 'Port' field, enter the SEM server's port.
4. In the 'Interface Name' field, enter the device's IP network interface from which the
device sends the reports to the SEM server.
5. Click Submit.

14.8.1.2 Configuring Clock Synchronization between Device and SEM

To ensure accurate call quality statistics and analysis by the SEM server, you must
configure the device and the SEM server with the same clock source for clock
synchronization. In other words, you need to configure them with the same NTP server.
The NTP server can be one of the following:

AudioCodes EMS server (also acting as an NTP server)

Third-party, external NTP server
Once you have determined the NTP server, all the elements--device, SEM, and EMS--must
be configured with the same NTP server address.
To configure, the NTP server's address on the device, see ''Configuring Automatic Date
and Time using SNTP'' on page 119.

14.8.1.3 Enabling RTCP XR Reporting to SEM

In order for the device to be able to send voice metric reports to the SEM, you need to
enable the RTP Control Protocol Extended Reports (RTCP XR) VoIP management
protocol. RTCP XR defines a set of voice metrics that contain information for assessing
VoIP call quality and diagnosing problems. Enabling RTCP XR means that the device can
send RTCP XR messages, containing the call-quality metrics, to the SEM server.
For enabling RTCP XR reporting, see ''Configuring RTCP XR'' on page 423. To configure
what to report to the SEM, see ''Configuring Quality of Experience Profiles'' on page 190.
User's Manual 194
MP-11x & MP-124
Document #: LTRT-65432