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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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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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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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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1.A cycle consists of two isothermal and two isentropic processes is known as :
(A)Otto cycle(B) Joule cycle
(C )Stirling cycle(D)Carnotcycle

2.In an isometric projection the radius of a sphere it is equal to :
(A)0.82 R(B)R
(C )1.22 R(D)2 R

3.The function of steam nozzle is to convert:
(A)heat energy steam into kinetic energy
(B)heat energy steam into rotational energy
(C )kinetic energy into heat energy of steam
(D)heat energy steam into pressure energy

4.Dryness fraction is the ratio of:
(A)mass of dry st ....etc

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1.A cycle consists of two isothermal and two isentropic processes is known as :
(A)Otto cycle(B) Joule cycle
(C )Stirling cycle(D)Carnotcycle

2.In an isometric projection the radius of a sphere it is equal to :
(A)0.82 R(B)R
(C )1.22 R(D)2 R

3.The function of steam nozzle is to convert:
(A)heat energy steam into kinetic energy
(B)heat energy steam into rotational energy
(C )kinetic energy into heat energy of steam
(D)heat energy steam into pressure energy

4.Dryness fraction is the ratio of:
(A)mass of dry st ....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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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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Time : 1 hour and 15 minutes
1Hooke’s law is valid :
(A) Only above elastic limit ((B) Only within elastic limit
(C ) Only within plastic limit (D) Till breaking of substance


2The bending moment on a section is maximum where shear force is :
(A) Zero (B) Minimum
(C ) Changing sign (D) Maximum


3The bending moment diagram for a cantilever carrying uniformly distributed load will be :
(A) A triangle (B) A parabola
(C ) A cubic parabola (D) A rectangle


4. The moment of inertia of a circular section, ab ....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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