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AudioCodes Mediant 2000 User Manual

AudioCodes Mediant 2000
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Version 6.6 457 Mediant 2000
User's Manual 40. Reporting Information to External Party
40 Reporting Information to External Party
This section describes features for reporting various information to an external party.
40.1 RTP Control Protocol Extended Reports (RTCP XR)
RTP Control Protocol Extended Reports (RTCP XR) is a VoIP management control that
defines a set of metrics containing information for assessing VoIP call quality and for
diagnosing problems. RTCP XR (RFC 3611) extends the RTCP reports defined in RFC
3550 by providing additional VoIP metrics. RTCP XR information publishing is implemented
in the device according to <draft-johnston-sipping-rtcp-summary-07>. This draft defines
how a SIP User Agent (UA) publishes the detailed information to a defined collector. RTCP
XR measures VoIP call quality such as packet loss, delay, signal / noise / echo levels,
estimated R-factor, and mean opinion score (MOS). RTCP XR measures these parameters
using metrics as listed in the table below.
Note: RTCP XR is a customer ordered feature and thus, must be included in the
Software License Key installed on the device.
RTCP XR messages containing key call-quality-related metrics are exchanged periodically
(user-defined) between the device and the SIP UA. This allows an analyzer to monitor
these metrics midstream, or a device to retrieve them using SNMP. The device can send
RTCP XR reports to an Event State Compositor (ESC) server using PUBLISH messages.
These reports can be sent at the end of each call and according to a user-defined interval
between consecutive reports.
RTCP XR Published VoIP Metrics
Group Metric Name
General
Start Timestamp
Stop Timestamp
Call-ID
Local Address (IP, Port & SSRC)
Remote Address (IP, Port & SSRC)
Session Description
Payload Type
Payload Description
Sample Rate
Frame Duration
Frame Octets
Frames per Packets
Packet Loss Concealment
Silence Suppression State
Jitter Buffer
Jitter Buffer Adaptive
Jitter Buffer Rate

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AudioCodes Mediant 2000 Specifications

General IconGeneral
BrandAudioCodes
ModelMediant 2000
CategoryGateway
LanguageEnglish

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