Packet Telephony

Packet Telephony consists of telephony and data tightly coupled on packet based switched multimedia networks. The packet telephony simply refers to the use of personal computers and a packet data network to produce a voice conversation. The goal of packet switched fabric in both LAN and WAN, the vision in to drive voice and data over a single multimedia (packet based N/W) allowing waves to engage in a media rich communication in a natural and straight-forwarded manner. The packet & based fabric is capable of supporting futur ....etc

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The limitations of the circuit-switching techniques of conventional telephony may now be overcome through integration with IP technologies. Internet Telephony is a powerful and economical communication option by combination of the telephone networks and data networks. IP telephony used to send audio, video, fax etc between two or more users in real time via packet switched network. The main motivation of IP telephony is Cost savings and ease of developing and integrating new services. Four type of IP telephon ....etc

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Communication via packet and data networks such as IP, ATM, Frame Relay has become a preferred strategy for both corporate and public networks. Experts predict that data traffic will soon exceed telephone traffic if it already hasnâ„¢t. As a result of this there has been considerable interest in transmitting traditional telephone traffic over data
networks. Internet Telephony is a powerful and economical communication options. It is a general term for the technologies that use the Internet Protocol's pac ....etc

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ADVANCED NOISE REDUCTION FOR MOBILE TELEPHONY

INTRODUCTION
¢ Have you ever used your mobile phone to place a call from a noisy place and been asked to call back from someplace quieter

¢ It would be great if the phone would mute the background noise for you
¢ This can be done by advanced multi microphone noise suppression algorithm working with principle of human hearing system.

EFFECT OF NOISE
If the environment is noisy
It will enter into microphone so that it become difficult for the ....etc

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Introduction

If you've never heard of Internet Telephony, get ready to change the way you think about long-distance phone calls. Internet Telephony, or Voice over Internet Protocol, is a method for taking analog audio signals, like the kind you hear when you talk on the phone, and turning them into digital data that can be transmitted over the Internet.
How is this useful? Internet Telephony can turn a standard Internet connection into a way to place free phone calls. The practical upshot of this is that by using some of the free Internet ....etc

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The Internet is a global network of close to 100 million people. It provides a vast range of telecommunication services, including electronic mail, the World Wide Web, and more recently, telephony. With appropriate software that can be downloaded free, users who are logged onto the Internet can talk to each other anywhere in the world at no additional cost. Recently, some companies have started services that allow such users to even talk to people who do not have an Internet connection, but only a regular phone, at a cost far below regular long ....etc

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Internet Telephony Policy in INDIA

The Internet is a global network of close to 100 million people. It provides a vast range of telecommunication services, including electronic mail, the World Wide Web, and more recently, telephony. With appropriate software that can be downloaded free, users who are logged onto the Internet can talk to each other anywhere in the world at no additional cost. Recently, some companies have started services that allow such users to even talk to people who do not have ....etc

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INTRODUCTION
Internet Telephony can be defined as real time voice or mult-imedia communication over the internet or more generally over packet switched network. two telecommunication standardizations bodies are now used IP (session initiation protocol ) as basis to make wireless Internet telephony a reality in the context of third generation wireless telecom- munication network.Millions of highly mobile end-user who are frequently change their location will access Int ....etc

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IP Telephony

If you've never heard of Internet Telephony, get ready to change the way you think about long-distance phone calls. Internet Telephony, or Voice over Internet Protocol, is a method for taking analog audio signals, like the kind you hear when you talk on the phone, and turning them into digital data that can be transmitted over the Internet.
How is this useful? Internet Telephony can turn a standard Internet connection into a way to place free phone calls. The practical upshot of this ....etc

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