Talk given by Kevin McIntyre 1 1 ZARLINK Semiconductors 1 INTRODUCTION. Zarlink Semiconductor is a provider of TDM voice/data switching chips, with the broadest line of TDM switches in the industry establishing a leadership in timing chips for T1/E1 equipment. " Zarlink holds a strong portfolio of intellectual property, numbering about 2,100 patents and pending applications in key technologies ...

Traditional answering machines and voice mail services are closed systems, tightly coupled to a single end system, the local PBX or local exchange carrier. Even simple services, such as forwarding voice mail to another user outside the local system, are hard to provide. With the advent of Internet telephony, we need to provide voice and video mail services. This also offers the opportunity to a...

Status of this Memo This memo provides information for the Internet community. It does not specify an Internet standard of any kind. Distribution of this memo is unlimited. Abstract This document discusses IAB concerns about effective end-to-end congestion control for best-effort voice traffic in the Internet. These concerns have to do with fairness, user quality, and with the dangers of conges...

Voice over Internet Protocol (VoIP) is being widely deployed to offer users low-cost alternatives for long-distance and international telephone calls. However, for users who are accustomed to the high-quality sound offered by traditional Public Switched Telephone Network (PSTN) service, VoIP voice quality often pales in comparison. Voice quality in VoIP networks widely varies as a result of sev...

The voice quality in Internet Protocol (IP) telephony is significantly influenced by various factors, including delay, delay variation, bandwidth congestion and the distribution of packet loss. Hence, the performance of IP telephony systems is highly dependent on understanding the contribution of these factors to the voice quality. This paper deals about a method for classifying Voice over IP (...

The proliferation of communications over networks based on Internet Protocol (IP) technology imposes ever growing challenges for Law Enforcement Agencies. This Aqsacom White Paper provides an introductory background on the issues behind lawful interception as applied to IP networks and their overlying applications, with emphasis on the dominant applications of E-mail and Voice-Over-IP (VOIP).

As telephony services are being supported on Internet the focus is now on multiplexing many speech streams by exploiting the speech characteristics. The multiplexing gain is an important factor when applications such as teleconference service are ported on to the Internet. Here we discuss Voice Activity Detection (VAD) for Voice over Internet Protocol (VoIP) based on Cepstrum. VAD aids in savin...

The present document exposes the development of a prototype of translation system as a Thesis Project. It consists basically on the capture of a flow of voice from the emitter, integrating advanced technologies of voice recognition, instantaneous translation and communication over the internet protocol RTP/RTCP (Real time Transport Protocol) to send information in real-time to the receiver. Thi...

Internet is a network based on IP (Internet Protocol). Routing between its independent subnetworks (domains) is assumed by BGP (Border Gateway Protocol) which uses IP. There was no need for QoS (Quality of Service) guarantees when these two protocols were designed and these guarantees aren’t integrated in Internet. Today, the expectations changed. The introduction of new applications, like voic...