Tackling VoIP Performance Issues
Just like anything else, VoIP comes with an issue, although VoIP has great benefits. While VoIP’s benefits outnumber its disadvantages, you should be aware of the VoIP drawbacks as a user.
What are those, exactly? Watch this video.
Video Rating: 5 / 5
Categories: VOIP Videos Tags: anything, application, issue, Issues, Performance, Tackling, Video Rating, VOIP, voip issues, Watch
Performance Evaluation of Voice Over Internet Protocol Reviews
Performance Evaluation of Voice Over Internet Protocol
This is a NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF COMPUTER SCIENCE report procured by the Pentagon and made available for public release. It has been reproduced in the best form available to the Pentagon. It is not spiral-bound, but rather assembled with Velobinding in a soft, white linen cover. The Storming Media report number is A875114. The abstract provided by the Pentagon follows: Voice over Internet Protocol (VoIP) was developed to emulate toll services with lower communication cost. In VoIP applications, voices are digitized and packetized into small blocks. These voice blocks are encapsulated in a sequence of voice packets using the Real-time Transport Protocol (RTP) and delivered by the User Datagram Protocol (UDP). To help VoIP applications deal with unpredictable network performance, the Real-time Transport Control Protocol (RTCP) is developed to monitor the performance of RTP packets and provide feedback to the VoIP applications. The feedback on packet delay, jitter, and loss rate enables the applications to adapt to network conditions to maintain a certain level of voice quality. With this architecture, the quality of service of VoIP relies on the effectiveness of the RTCP network performance report mechanism. This research collects RTCP performance reports from live traffic over real networks and compares their values with the statistics derived from direct measurements of RTP packets to evaluate the effectiveness of RTCP. The live experiments were conducted on networks resembling respectively, Local Area Network (LAN), Wide Area Network (WAN), campus network, and encrypted wireless LAN. Results from these experiments show that RTCP is effective for low delay networks but RTCP performance reports can be inaccurate for networks with large, volatile delays.
List Price: $ 28.95
Price:
Find More Voice Over Internet Products
Categories: VOIP Products Tags: Evaluation, internet, over, Performance, protocol, Reviews, voice
VoIP Performance Management and Optimization (Networking Technology: IP Communications)
VoIP Performance Management and Optimization (Networking Technology: IP Communications)
VoIP Performance Management and Optimization
A KPI-based approach to managing and optimizing VoIP networks
IP Communications
Adeel Ahmed, CCIE® No. 4574
Habib Madani
Talal Siddiqui, CCIE No. 4280
VoIP Performance Management and Optimization is the first comprehensive, expert guide to managing, monitoring, troubleshooting, and optimizing large VoIP networks. Three leading Cisco VoIP experts bring together state-of-the-art techniques for ensuring that customer service level agreements (SLA) are consistently met or exceeded.
The authors begin by reviewing how VoIP is deployed in enterprise and service provider networks and the performance tradeoffs and challenges associated with each leading VoIP deployment model. Next, they present a comprehensive approach to diagnosing problems in VoIP networks using key performance indicators (KPI) and proactively addressing issues before they impact service.
In this book, you will find a proven tools-based strategy for gauging VoIP network health and maximizing performance and voice quality. You also will learn how to perform trend analysis and use the results for capacity planning and traffic engineering—thereby optimizing your networks for both the short- and long-term.
The authors all work in the Cisco Advanced Services Group.
- Deploy, manage, monitor, and scale multivendor VoIP networks more effectively
- Integrate performance data from multiple VoIP network segments and service flows to effectively manage SLAs
- Use performance counters, call detail records, and call agent trace logs to gauge network health in real time
- Utilize dashboards to analyze and correlate VoIP metrics, analyze trends, and plan capacity
- Implement a layered approach to quickly isolate and troubleshoot both localized and systemic problems in VoIP networks
- Optimize performance in networks where the service provider owns the “last mile” connection
- Improve performance when VoIP is deployed over publicly shared infrastructure
- Manage performance in enterprise networks using both centralized and distributed call processing
- Plan media deployment for the best possible network performance
- Monitor trends, establish baselines, optimize existing resources, and identify emerging problems
- Understand and address common voice quality issues
This IP communications book is part of the Cisco Press® Networking Technology Series. IP communications titles from Cisco Press help networking professionals understand voice and IP telephony technologies, plan and design converged networks, and implement network solutions for increased productivity.
Category: Networking: Unified Communications
Covers: Voice over IP Network Management
List Price: $ 65.00
Price:
Related Voip Products
Categories: VOIP Products Tags: Communications, Management, NETWORKING, Optimization, Performance, Technology, VOIP