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telephony
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White Papers
How New Phone Technology Affects the Environment
May 25, 2011 12:00am PDT
In just 30 years, mobile telephony has grown into a major global industry, with an estimated 5 billion users around the world (compared with a total world population of just under 7 billion...
Provided by: Underwriters Laboratories
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White Papers
Call Quality Measurement and Application in Telecommunication Network
May 23, 2011 12:00am PDT
The measurement of call quality from end users perspective is emerging area of research on speech quality in telecommunication networks. The research is focused on deriving the call quality...
Provided by: King Saud University
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Whitepapers
Using Voice over IP (VoIP) in Mobile Networks
May 12, 2011 12:00am PDT
Early in the last decade, service providers viewed VoIP as a threat to their traditional revenue streams. This has turned out to be true and is made possible by VoIP and the Internet, which is not...
Provided by: Global Knowledge
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Case Studies
Leading European Telecoms Operator
May 5, 2011 12:00am PDT
The company provides high-quality fixed and mobile telephony, Internet and digital television services and products, and is an all-round provider of ICT services for consumers. It also provides an...
Provided by: Capgemini
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White Papers
A Survey on Telecommunication Technology Standards
May 5, 2011 12:00am PDT
Mobile ad-hoc network is a self configurable routing protocol. Nodes in MANET can shift freely from one place to another place and each node in MANET can take action as a transmitter, receiver and...
Provided by: Motilal Nehru National Institute Of Technology
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White Papers
Comparative Study of VoIP Over WiMax and WiFi
May 1, 2011 12:00am PDT
Recently wireless technology has grown immensely in popularity and usage becoming a medium of choice for networks. The wireless communication revolution is bringing fundamental changes to data...
Provided by: University of Karachi
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Whitepapers
Performance Evaluation & Optimization of Error Free WDM Radio Over Fiber Link
May 1, 2011 12:00am PDT
In this paper, the authors introduce WDM Radio over Fiber (RoF), which is one of enabling technologies for 3G and beyond. To minimize the problem of high attenuation, power loss and to improve the...
Provided by: International Journal of Engineering Science and Technology (IJEST)
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Whitepapers
The Technological Issues and Impact of Intelligent Network Strategies and Its Rapid Deployment of Services in the Communication Network
May 1, 2011 12:00am PDT
The primary aim of the IN was to enhance the core telephony services offered by traditional telecommunications networks, which usually amounted to making and receiving voice calls, sometimes with...
Provided by: International Journal of Engineering Science and Technology (IJEST)
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Whitepapers
Content-Based Detection and Prevention of Spam Over IP Telephony - System Design, Prototype and First Results
April 26, 2011 12:00am PDT
Spam over IP-Telephony (SPIT) may emerge as a major threat requiring effective protection mechanisms. A number of anti-SPIT frameworks have been proposed in the last years. These are mainly based...
Provided by: Institute of Electrical & Electronic Engineers
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Whitepapers
An Efficient Method for Performance Evaluation of Femto-Macro Overlay Systems
April 26, 2011 12:00am PDT
This paper considers a two-tier femto-macro overlay network architecture, where groups of femtocells are overlaid by macrocells. The capacity of the femtocells is limited, thus redirection of...
Provided by: Institute of Electrical & Electronic Engineers
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White Papers
Relays-Enhanced LTE-Advanced Networks Performance Studies
April 8, 2011 12:00am PDT
This paper proposes a study on the performance of multi-hop relays networks. The authors demonstrate the importance of the relays for coverage and capacity enhancement and study how the number of...
Provided by: Telecom ParisTech
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Blog Post
Encrypt calls on your Android device with RedPhone
April 4, 2011 1:25pm PDT
Whisper Systems offers call encryption on Android with RedPhone. Chad Perrin describes how it works and where the potential security questions exist.
12 Latest comment by apotheon
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White Papers
Dynamic System Performance of SISO, MISO and MIMO Alamouti Schemes
April 4, 2011 12:00am PDT
MIMO systems have been deeply investigated during the last years. They have been proven to achieve better performance in terms of capacity through the multiplexing gain and in terms of reliability...
Provided by: Telecom ParisTech
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White Papers
How to Set the Fractional Power Control Compensation Factor in LTE?
April 4, 2011 12:00am PDT
The uplink power control procedure in Long Term Evolution (LTE) cellular networks is made of an open-loop part and a closed loop part. In this paper, the authors focus on the former and study the...
Provided by: Telecom ParisTech
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Whitepapers
Advanced Consideration of a Caller Pre-Validation Against Direct Spam Over Internet Telephony
April 2, 2011 12:00am PDT
Spam over Internet Telephony as the distribution of unwanted voice messages over Voice over Internet Protocol networks is an upcoming threat. It is harder to prevent than e-mail spam since its...
Provided by: IARIA
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Case Studies
Global Bank Enables Secure, Anywhere Mobility
April 1, 2011 12:00am PDT
Standard Bank Plc is the principal international subsidiary of The Standard Bank Group (Standard Bank). Standard Bank is a leading African banking group with strategic representation throughout 32...
Provided by: Cisco Systems
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Case Studies
Collaboration Boosts Productivity for Generali Group
March 30, 2011 12:00am PDT
The Generali Group is one of the most significant participants in the global insurance and financial products market. Their challenges are Customer satisfaction lowered because of difficulty...
Provided by: Cisco Systems
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White Papers
Engineering a Suburban Ad-Hoc Network
March 27, 2011 12:00am PDT
Ad-hoc wireless networks are networks of co-operating users, with no reliance upon fixed infrastructure. Such networks are growing in popularity, as wireless communication hardware, both fixed and...
Provided by: Monash University
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White Papers
You Can SPIT, But You Can't Hide: Spammer Identification in Telephony Networks
March 27, 2011 12:00am PDT
SPam over Internet Telephony (SPIT) is a new form of spam delivered using the phone network. With the low cost of Internet telephony, SPIT has become an attractive alternative for spammers to...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
Design and Analysis of Speech Processing Using Kalman Filtering
March 16, 2011 12:00am PDT
Speech processing is used widely in every day's applications that most people take for granted, such as network wire lines, cellular telephony, telephony system and telephone answering machines....
Provided by: JATIT
