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voip
(2498 results)-
White Papers
Secure Communication Using Electronic Identity Cards for Voice over IP Communication, Home Energy Management, and eMobility
April 30, 2012 12:00am PDT
Using communication services is a common part of everyday life in a personal or business context. Communication services include Internet services like voice services, chat service, and web 2.0...
Provided by: IARIA
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Whitepapers
Towards Statistical Analysis of the Impact of Playout Buffer on Quality of Experience in VoIP Applications
April 30, 2012 12:00am PDT
The speech quality of Voice over IP (VoIP) applications can be assessed subjectively as Quality of Experience (QoE) and objectively as Quality of Service (QoS). QoE is multifaceted, which ties...
Provided by: IARIA
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White Papers
Analyzing the Effect of Playout Buffer Adjustment on Voice Quality for VoIP Based Social-Network Applications
April 23, 2012 12:00am PDT
Social networks are making the dream of real time group communication a reality. Voice over Internet Protocol (VoIP)based social network applications are becoming popular but are also suffering...
Provided by: Universal Association of Computer and Electronics Engineers
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Whitepapers
Modelling and Simulation of Voice Over Internet Protocol (VOIP)
April 1, 2012 12:00am PDT
Real time voice transmission is now widely used over the Internet and has become a very significant application. Voice quality is still however an open problem due to the loss of voice packets and...
Provided by: International Journal of Engineering and Innovative Technology (IJEIT)
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Whitepapers
Privacy and Packet Dispersion of Voice Applications in P2P Networks-VoIP
April 1, 2012 12:00am PDT
In this paper, the authors are mainly focusing about how to improve privacy in peer to peer VOIP network without the involvement of third party. Currently they have the technologies like skype,...
Provided by: International Journal of Computer Applications
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White Papers
Perceptual Evaluation of Playout Buffer Algorithm for Enhancing Perceived Quality of Voice Transmission Over IP Network
April 1, 2012 12:00am PDT
Voice over Internet Protocol (VoIP) is a technology that allows you to make voice calls using a broadband Internet connection instead of a regular (or analog) phone line. Voice over Internet...
Provided by: Academy & Industry Research Collaboration Center
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Whitepapers
Android Driven Security in Sip Based VoIP Systems Using ZRTP on GPRS Network
April 1, 2012 12:00am PDT
Voice has always been the poor cousin of data security. In VoIP networks, most of the packets are transmitted without Encryption. Any unauthorized person can capture the packets with the use of...
Provided by: International Journal of Computer Networks and Wireless Communications (IJCNWC)
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Discussion Threads
Six reasons why tablets will replace desk phones
March 23, 2012 8:32am PDT
Eeerily Similar Good points! The technical visionary at the company I work at gave a very similar presentation a week ago, What started first as the piercing of the Blackberry barrier by the...
23 Started by thomas.cauley@... | Latest comment by ChyrillStucker
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Whitepapers
Evaluation and Improvement of VoIP Capacity for LTE
March 18, 2012 12:00am PDT
LTE-Advanced (LTE-A) proposed by the 3rd Generation Partnership Project (3GPP) has been accepted by the International Telecommunication Union (ITU) in 2010 as an IMT-Advanced (IMT-A) compliant 4G...
Provided by: RWSoftware
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Whitepapers
QoE-Based Energy Conservation for VoIP Over WLAN
March 12, 2012 12:00am PDT
Minimizing energy consumption is becoming more and more crucial in today's mobile terminals communications. Reducing its use pass necessarily by exploiting low power design techniques and by...
Provided by: University of Reims Champagne Ardenne
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Whitepapers
Secondary User VoIP Capacity in Opportunistic Spectrum Access Networks With Friendly Scheduling
March 12, 2012 12:00am PDT
In conventional cognitive radio networks it is usually assumed that the primary network remains unchanged. The onus is then placed on the secondary network users to make the best use of any...
Provided by: McMaster University
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Whitepapers
Performance Evaluation of TCP and UDP During LTE Handover
March 12, 2012 12:00am PDT
LTE (Long Term Evolution) has been standardized in 3GPP (3rd Generation Partnership Project) to provide higher data throughput as well as lower latency for various IP based services including web...
Provided by: SOFTBANK Creative Corp.
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Whitepapers
Coverage Analysis of Skype VoIP Services Over 3G Cellular Networks
March 12, 2012 12:00am PDT
Provision of voice services over 3G W-CDMA radio access networks is generally designed as a function of the air interface requirements of Circuit-Switched (CS) connections. On the other hand,...
Provided by: Institute of Electrical & Electronic Engineers
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Whitepapers
Simplified Joint Call and Packet Level Teletraffic Analysis of CAC Strategies for VoIP Traffic in Wireless Networks
March 12, 2012 12:00am PDT
In this paper, a simplified joint call and packet level tele-traffic analysis method for performance evaluation of Call Admission Control (CAC) strategies for Voice over IP (VoIP) traffic over...
Provided by: Institute of Electrical & Electronic Engineers
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White Papers
Five Top Tips for Choosing a Telecoms Partner for Social Media and Internet Applications
March 9, 2012 12:00am PST
Bringing universal mobile services such as voice, SMS and mobile phone numbers to the web environment is the latest focus of internet and social networking businesses. Facebook provides a...
Provided by: TynTec
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Whitepapers
A Dual Buffer Scheme for Combating Frame Erasure Problems in VoIP Communication
March 1, 2012 12:00am PST
This paper refers to the transmission of speech across data-style networks. This form of transmission is conceptually superior to conventional circuit switched communication in many ways. Quality...
Provided by: International Journal of Computer Applications
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Whitepapers
Performance Analysis of Various Codecs Using RSVP on VoIP Quality of Service Over Variable Bandwidth
March 1, 2012 12:00am PST
With the rapid growth of the Internet, customers are demanding multimedia applications such as telephony and video on demand, to be available on the internet. Voice over Internet Protocol (VoIP)...
Provided by: International Journal of Computer Applications
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Whitepapers
End to End Encryption Architecture for Voice Over Internet Protocol
March 1, 2012 12:00am PST
Session Initiation Protocol (SIP) is an open standard protocol and constitutes the provisioning of services like Internet Telephony and Instant Messaging. Vulnerabilities in SIP have made it...
Provided by: International Journal of Computer Applications
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Whitepapers
Survey of QoS Issues for TCP Connections in Optical Burst Switched Networks
March 1, 2012 12:00am PST
Optical Burst Switching (OBS) can cater the requirements of bandwidth intensive applications like Voice-over-IP, video conferencing, interactive video on demand. It is switching technique for the...
Provided by: International Journal of Computer Applications
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Whitepapers
Adaptive Rate Control Cryptographic Active Voice Transcoding (ARC-CAVT) Congestion Control Mechanism for Voice Over IP (VOIP) Transmission - A Case Study
March 1, 2012 12:00am PST
The quality of bulky real time voice communication over an IP network degrades due to packet header overhead, network congestion and improper queuing strategies. These overheads affect the overall...
Provided by: International Journal of Communications and Engineering
