We are building EduLadder(ELADR) - Protocol

The Eladr Protocol is a decentralized, security and efficiency enhanced Web3 noSQL database powered by IPFS as the data storage layer https://ipfs.io/, and the Cardano block chain as the rewards token platform, https://cardano.org/. It provides a JSON based, IPFS layer 2 solution for data indexing and retrieval in an 'append only' file system built with open source Node.js API libraries.

Eladr tokens are designed to incentifised community members as a proof of contribution. Using that they can access diffrent infrastructure built on top of eladr


Using this You can,Buy courses,Reward others and exchange for real money.


WHITE PAPER Buy Now

Real Problems! Real Experts!

Join Our Telegram Channel !


The Eduladder is a community of students, teachers, and programmers. We help you to solve your academic and programming questions fast.
In eduladder you can Ask,Answer,Listen,Earn and Download Questions and Question papers.
Watch related videos of your favorite subject.
Connect with students from different parts of the world.
Apply or Post Jobs, Courses ,Internships and Volunteering opportunity. For FREE
See Our team
Wondering how we keep quality?
Got unsolved questions? Ask Questions
Billion Drop

We are starting air drop for the month November So that you can test alpha version of our eladr protocol that will release soon. Who ever has ever posted an answer on eduladder is eligible for this. Please update your profile with cardano address to test.

For any question or query please joinOur Telegram Channel !


Countdown Started

List Of Profiles Enrolled
Youtube Videohttps://www.youtube.com/watch?v=JnuD8IEan4s

Our Github Repo
FrontEnd BackEnd

We are looking for some great and cool people to work with us. Please sent your resume to admin@eduladder.com


You are here:Open notes-->Seminar-topics-and-ppt-for-engineering-->voice-over-internet-protocol

voice over internet protocol

How to study this subject


The development of very fast, inexpensive microprocessors and special-purpose switching chips, coupled with highly reliable fibre-optic transmission systems, has made it possible to build economical, ubiquitous, high speed packet-based data networks. Similarly, the development of very fast, inexpensive digital signal processors (DSPs) has made it practical to digitize and compress voice and fax signals into data packets. The natural evolution of these two developments is to combine digitized voice and fax packets with packet data, creating integrated data-voice networks. The voice-over-Internet protocol (VoIP) technology allows voice information to pass over IP data networks. Primarily, the cost savings that accrue from operating a single, shared network have motivated this convergence of telecommunications and data communications. VoIP allows you to make telephone calls using a computer network, over a data network like the Internet. VoIP converts the voice signal from your telephone into a digital signal that travels over the Internet then converts it back at the other end so you can speak to anyone with a regular phone number.


The VoIP networks replace the traditional public-switched telephone networks (PSTNs), as these can perform the same functions as the PSTN networks. The functions performed include signaling, databasing, call connect and disconnect, and codingdecoding.

Signaling: Signaling in a VoIP network is accomplished by the exchange of datagram messages between the components. The format of these messages is covered by the standard datalink layer protocols.

Database services: Database services are a way to locate an endpoint and translate the addressing that two networks use; for example, the PSTN uses phone numbers to identify endpoints, while a VoIP network could use an IP address and port numbers to identify an endpoint. A call control database contains these mappings and translations.

Call connect and disconnect (bearer control): The connection of a call is made by two endpoints opening communication sessions between each other. In the PSTN,the public (or private) switch connects logical channels through the network to complete the calls. In a VoIP implementation, a multimedia stream (audio, video, or both) is transported in real time. The connection path is the bearer channel and represents the voice or video content being delivered. When communication is complete, the IP sessions are released and, optionally, network resources are freed.

CODEC operations: Voice communication is analogue, while data networking is digital. Analogue waveforms are converted into digital information by using a coder-decoder (CODEC).

Official Notes


Add contents here

Notes from other sources


voIP.doc


Model question papers


Add contents here

Previous year question papers


Add contents here

Useful links


Add contents here

Editors

RajivRajiv


You might like this video:Watch more here

Watch more videos from this user Here

Learn how to upload a video over here