While successive technology has elevated most aspects of audio quality, this paper shows how it has lowered some aspects, especially bandwidth. We show how technology and network integration reduce our ability to discriminate phonemes and identify speakers. High-fidelity Voice-overIP is proposed as way to fix this.

india is much more integrated with the world economy. both current and capital accounts are complementing to each other. the economic slowdown that appears to have begun in the usa in september, 2008 has some negative impact on indian economy. the most immediate and adverse effect of this global financial crisis on india is an out flow of foreign institutional investment (fii) from the capital ...

Fueled by the Internet revolution and the lure of opportunities in the new converging world of voice, data and video over cost-effective networks, telecom and networking companies are attempting to offer the most complete and compelling end-to-end enterprise solutions. The interest in clustering from the telecom world comes from the fact that we can address the availability and scaled performan...

Because recent heterogeneous telecom networks have developed into complex distributed systems, the management of these systems is more elaborated and resource consuming. Self-organization of network resource colonies based on semantic associations with logical relations can provide a solution. This paper presents a method for resource management in telecom distributed testing environments with ...

We demonstrate a compact photon pair source based on a periodically poled lithium niobate nonlinear crystal in a short cavity. This approach provides efficient, low-loss, mode selection that is compatible with standard telecommunication networks. Photons with a coherence time of 8.6 ns (116 MHz) are produced and their purity is demonstrated. A source brightness of 134 pairs (s. mW. MHz)(-1) is ...

This paper aims to propose a significant way of remote access and real time monitoring of a particular geographic area by integrating wireless sensor clouds with existing Telecom infrastructure and applications built around them through a gateway. This utility is very potent for environment monitoring in harsh and inaccessible places like mines, nuclear reactors, etc. We demonstrate a scaled do...

We present a device for two-stage frequency upconversion of single-photon-level signals in the 1.55 μm telecom band to the green spectral region with low excess noise, suitable for detection by low-timing-jitter silicon single-photon avalanche photodiodes (APDs). We achieve a net conversion efficiency of 87% and a system timing jitter below 70 ps FWHM, dominated by the jitter of the APD. Modifi...

In some countries, like Sweden, regulatory reform of monopoly industries such as telecom and mail went ahead without much consideration to how competition would affect the universal provision of services. This paper reviews issues that ought to be considered in the process of shaping a universal-service policy that is conform to market competition. * Department of Economics, Informatics and Sta...

The World Wide Telecom Web (WWTW) (also known as Spoken Web) is emerging as an alternate web for the underprivileged, navigable entirely through a voice based interface using an ordinary telephone. A node in the WWTW graph is a voice application called a VoiceSite and is accessible over a simple phone call. VoiceSites are hyperlinked through Hyperspeech Transfer Protocol (HSTP). However, severa...

Distribution of digital content is a key revenue opportunity for telecommunications carriers. As media content moves from analog and physical media-based distribution to digital on-line distribution, a great opportunity exists for carriers to claim their role in the media value chain and grow revenue by enhancing their broadband “all you can eat” high speed Internet access offer to incorporate ...