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voip
(2498 results)-
White Papers
Moving toward unified communications - Pave the way for the future with Adobe® Connect™ 8
September 26, 2011 12:00am PDT
The communications technology industry has been working toward a vision of unified communications (UC) in which voice, video, and data services truly converge on a single, shared IP-based...
Provided by: Adobe Systems
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Whitepapers
Dealing With VoIP Calls During "Busy Hour" in LTE
September 26, 2011 12:00am PDT
Long Term Evolution (LTE) is an evolving wireless standard developed by the 3rd Generation Partnership Project (3GPP) which, along with 3GPP HSPA+, 3GPP EDGE Evolution and Mobile WiMAX (IEEE...
Provided by: Centre Tecnològic de Telecomunicacions de Catalunya (CTTC)
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White Papers
A First Look on the Effects and Mitigation of VoIP SPIT Flooding in 4G Mobile Networks
September 18, 2011 12:00am PDT
The fourth generation of mobile networks is considered a technology-opportunistic and user-centric system. Part of its new architecture, 4G networks will implement an evolved packet core. Although...
Provided by: Concordia University
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White Papers
Security Test Approach for Automated Detection of Vulnerabilities of SIP-Based VoIP Softphones
September 15, 2011 12:00am PDT
Voice over Internet Protocol based systems replace phone lines in many scenarios and are in wide use today. Automated security tests of such systems are required to detect implementation and...
Provided by: IARIA
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White Papers
Retrieving Packets From Losing During Service Disruption Time, During Vertical Handover Among UMTS and WLAN
September 15, 2011 12:00am PDT
In voice activity based communication Choi et al show that using of mutual silence period to do the Vertical Hand-Over (VHO) is a perfect choice to minimize the packet loss. However according to...
Provided by: The International Journal of Advanced Networking and Applications
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Whitepapers
Implementing fax over IP in your organisation
September 14, 2011 12:00am PDT
Once voice systems have migrated to VoIP, fax communications are the next logical addition to an IP-based environment. This white paper discusses how fax servers and new fax over IP (FoIP)...
Provided by: OpenText
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White Papers
The Village Telco Project: A Reliable and Practical Wireless Mesh Telephony Infrastructure
September 13, 2011 12:00am PDT
VoIP (Voice over IP) over mesh networks could be a potential solution to the high cost of making phone calls in most parts of Africa. The Village Telco (VT) is an easy to use and scalable VoIP...
Provided by: Springer
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Whitepapers
Agent Based VoIP Application With Reputation Mechanisms
September 1, 2011 12:00am PDT
In this paper, the authors introduce their new VoIP model the aim of which is to meet the challenges of modern telephony. They present project concepts, details of implementation and their testing...
Provided by: Warsaw University
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White Papers
A Comprehensive Study of Adverse Effect of Malicious Attacks on End-to-End Delay in Mobile Ad-Hoc Networks Carrying Packet Telephony
September 1, 2011 12:00am PDT
Like any other wireless network, mobile ad-hoc networks are highly vulnerable to security threats coming from various intruders. Attacks launched by nodes that are part of the network, have...
Provided by: Kurukshetra University
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White Papers
Convergence without Complexity: Insights and Lessons Learned from the Trenches Strategies/Lessons Learned for Convergence Success.
September 1, 2011 12:00am PDT
The problem with traditional converged networks is that the cost savings generated by a unified infrastructure can quickly be outweighed by the negative business impact of garbled calls, jittery...
Provided by: Alcatel Lucent Enterprise
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White Papers
The New Corporate Network: How Convergence Addresses Businesses' Top Six Networking Challenges
September 1, 2011 12:00am PDT
Enterprises today are faced with significant challenges in delivery of real-time applications, such as video, that increasingly demand more and higher quality bandwidth. To complicate matters,...
Provided by: Alcatel Lucent Enterprise
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White Papers
Enabling Cost Reductions Through Convergence
September 1, 2011 12:00am PDT
Convergence is a necessary step to achieve significant cost savings in an enterprise network. At the same time, enterprises can also make money with their converged infrastructure. This...
Provided by: Alcatel Lucent Enterprise
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Whitepapers
Nemertes Research PilotHouse Awards: IP Telephony
September 1, 2011 12:00am PDT
For the past eight years, independent research firm, Nemertes Research, has surveyed IT professionals for its annual benchmark on IP telephony using notable evaluation criteria. Each year,...
Provided by: ShoreTel
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White Papers
Performance Analysis of MANET (WLAN) Using Different Routing Protocols in Multi Service Environments-An Quantitative Study
August 29, 2011 12:00am PDT
A Mobile Ad-hoc NETwork is a network (MANET) of wireless Mobile Nodes (MNs) that communicate with each other without centralized control or established infrastructure. Routing protocols are...
Provided by: VIT UNIVERSITY
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White Papers
Session-Based Classification of Internet Applications in 3G Wireless Networks
August 25, 2011 12:00am PDT
Accurately classifying and identifying wireless network traffic associated with various applications, such as Web, VoIP, and VoD, is a challenge for both service providers and network operators....
Provided by: Reed Elsevier
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White Papers
Demystifying Configuration Challenges and Trade-Offs in Network-Based ISP Services
August 19, 2011 12:00am PDT
ISPs are increasingly offering a variety of network-based services such as VPN, VPLS, VoIP, Virtual-Wire and DDoS protection. Although both enterprise and residential networks are rapidly adopting...
Provided by: Association for Computing Machinery
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White Papers
Why 2011 Is The Year of video conferencing
August 17, 2011 12:00am PDT
As industry consultants and analysts, we are beginning to see a dramatic shift towards video conferencing and its use. Most of our enterprise clients are beginning to show significant interest and...
Provided by: LifeSize Communications
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White Papers
Defending Embedded Systems With Software Symbiotes
August 9, 2011 12:00am PDT
A large number of embedded devices on the internet, such as routers and VOIP phones, are typically ripe for exploitation. Little to no defensive technology, such as AV scanners or IDS's, are...
Provided by: Columbia University
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Whitepapers
An Optimized Handover Scheme for WIMAX
August 1, 2011 12:00am PDT
WiMAX is a Broadband Wireless Access (BWA) scheme based on IEEE 802.16. This technology aims at providing last mile access to internet and data services. IEEE 802.16d standard provides fixed...
Provided by: International forum of researchers Students and Academician
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Whitepapers
On-Demand Decode and Forward Cooperative MAC for VoIP in Wireless Mesh Networks
July 27, 2011 12:00am PDT
The employment of wireless mesh networking in real life scenarios has attracted substantial research interest in recent years and in this context VoIP has become a ubiquitous application. However,...
Provided by: University of South Florida
