User`s manual
Table Of Contents
- Mediant 2000 & TP-1610 & TP-260/UNI SIP User’s Manual Version 5.0
- Table of Contents
- List of Figures
- List of Tables
- Notices
- 1. Overview
- 2. Physical Description
- 3. Installation
- 4. Getting Started
- 5. Web Management
- Computer Requirements
- Protection and Security Mechanisms
- Accessing the Embedded Web Server
- Getting Acquainted with the Web Interface
- Protocol Management
- Advanced Configuration
- Status & Diagnostic
- Software Update Menu
- Maintenance
- Logging Off the Embedded Web Server
- 6. Gateway's ini File Configuration
- Secured ini File
- Modifying an ini File
- The ini File Content
- The ini File Structure
- The ini File Example
- Networking Parameters
- System Parameters
- Web and Telnet Parameters
- Security Parameters
- RADIUS Parameters
- SNMP Parameters
- SIP Configuration Parameters
- Voice Mail Parameters
- ISDN and CAS Interworking-Related Parameters
- Number Manipulation and Routing Parameters
- E1/T1 Configuration Parameters
- Channel Parameters
- Configuration Files Parameters
- 7. Using BootP / DHCP
- 8. Telephony Capabilities
- Working with Supplementary Services
- Configuring the DTMF Transport Types
- Fax & Modem Transport Modes
- Event Notification using X-Detect Header
- ThroughPacket™
- Dynamic Jitter Buffer Operation
- Configuring the Gateway’s Alternative Routing (based on Conn
- Call Detail Report
- Supported RADIUS Attributes
- Trunk to Trunk Routing Example
- Proxy or Registrar Registration Example
- SIP Call Flow Example
- SIP Authentication Example
- 9. Networking Capabilities
- 10. Advanced PSTN Configuration
- 11. Advanced System Capabilities
- 12. Special Applications
- 13. Security
- 14. Diagnostics
- 15. SNMP-Based Management
- SNMP Standards and Objects
- Carrier Grade Alarm System
- Cold Start Trap
- Third-Party Performance Monitoring Measurements
- TrunkPack-VoP Series Supported MIBs
- Traps
- SNMP Interface Details
- SNMP Manager Backward Compatibility
- Dual Module Interface
- SNMP NAT Traversal
- SNMP Administrative State Control
- AudioCodes’ Element Management System
- 16. Configuration Files
- Appendix A. Selected Technical Specifications
- Appendix B. Supplied SIP Software Kit
- Appendix C. SIP Compliance Tables
- Appendix D. The BootP/TFTP Configuration Utility
- Appendix E. RTP/RTCP Payload Types and Port Allocation
- Appendix F. RTP Control Protocol Extended Reports (RTCP-XR)
- Appendix G. Accessory Programs and Tools
- Appendix H. Release Reason Mapping
- Appendix I. SNMP Traps
- Appendix J. Installation and Configuration of Apache HTTP Server
- Appendix K. Regulatory Information

SIP User's Manual F. RTP Control Protocol Extended Reports (RTCP-XR)
Version 5.0 367 October 2006
F 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
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 media server 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 messages containing key call-quality-related metrics are exchanged periodically
(user-defined) between the gateway and the SIP UA. This allows an analyzer to monitor
these metrics midstream, or a gateway to retrieve them using SNMP. The gateway 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 (configured using
RTCPXRReportMode) and according to a user-defined interval (RTCPInterval or
DisableRTCPRandomize) between consecutive reports.
To enable RTCP-XR reporting, the VQMonEnable ini file parameter must be set to 1.
For a detailed description of the RTCP-XR ini file parameters, refer to Table
6-12 on page
196.
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 the metrics listed in the table below.
Table F-1: RTCP-XR Published VoIP Metrics (continues on pages 367 to 368)
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
Jitter Buffer Nominal
Jitter Buffer Max
Jitter Buffer Abs Max
Packet Loss
Network Packet Loss Rate
Jitter Buffer Discard Rate