ArtsAutosBooksBusinessEducationEntertainmentFamilyFashionFoodGamesGenderHealthHolidaysHomeHubPagesPersonal FinancePetsPoliticsReligionSportsTechnologyTravel

VoIP Project - Real Time Transport Protocol Training

Updated on July 6, 2011

Voip Study Question booklets for communication engineering students and trainees

I have created this hub today so that students studying voice over IP services can learn about real time transport protocol. This is also for communication engineering students who are into VoIP training and have assignments and VoIP projects.

Real time transport protocol (RTP) or transport protocol in real time is a protocol, which as its name implies is used for transmission of real-time info such as video or voice data. RTP is a much higher-level protocol, which works on user datagram protocol or UDP using the multiplexing or checksum services in order to provide some programs that generate data such as managing real time transmissions through multicast or unicast broadcasts.

However, RTP or Real time transport protocol is not reliable enough by itself, but it provides applications of lower layers and resources provided by routers and switches in order to ensure reliability. Real time protocol packets contain no length field because when it runs over user datagram protocol, RTP is the one, which encases the compressed voice real-time datagrams.

RTCP or RTP Control Protocol is a tool, which uses Real time protocol or RTP to achieve real time transmission of data and this is the one which provides feedback to the backup system about quality of distribution and network congestion. In simple words with RTCP the VoIP service providers can easily monitor the quality of the service rendered and can diagnose various network congestion problems that may be present in the network.

Besides this, RTCP sync video and audio also knows about number of users that are present at a conference and it also calculates and monitors the rate at which data packets should be sent. It is important to note that all the above options become mandatory when real time protocols are used in IP multicast environments. There is also another optional application, which is known as session management, which is required in situations where there is widespread or considerable use of users that come and go constantly such as in call centers.

Real time protocol is able to run on high-speed wide area network protocols such as Asynchronous Transfer Mode Protocol with no problem. Real time protocol is able to run on asymmetric networks such as cable modems, asymmetric digital subscriber lines, or satellite links but complies with certain characteristics of bandwidth in each direction and is used exclusively to implement real time protocol or RTP.

Transmission control protocol or TCP is a heavy information transport protocol and carries video and voice data but TCP and other protocols like XTP (Xpress Transfer Protocol) become inappropriate for 3 basic reasons:

  1. First drawback of TCP is that it does not support multicast and leads to loss of packets using broadcast packages.
  2. Second drawback of TCP is that the TCP congestion control reduces the transmission window when it detects audio and video data packet loss whereas the alternative applications for TCP do not allow such reductions in transmission window.
  3. Third drawback of TCP is that the header of these protocols is longer than RTPs.

working

This website uses cookies

As a user in the EEA, your approval is needed on a few things. To provide a better website experience, hubpages.com uses cookies (and other similar technologies) and may collect, process, and share personal data. Please choose which areas of our service you consent to our doing so.

For more information on managing or withdrawing consents and how we handle data, visit our Privacy Policy at: https://corp.maven.io/privacy-policy

Show Details
Necessary
HubPages Device IDThis is used to identify particular browsers or devices when the access the service, and is used for security reasons.
LoginThis is necessary to sign in to the HubPages Service.
Google RecaptchaThis is used to prevent bots and spam. (Privacy Policy)
AkismetThis is used to detect comment spam. (Privacy Policy)
HubPages Google AnalyticsThis is used to provide data on traffic to our website, all personally identifyable data is anonymized. (Privacy Policy)
HubPages Traffic PixelThis is used to collect data on traffic to articles and other pages on our site. Unless you are signed in to a HubPages account, all personally identifiable information is anonymized.
Amazon Web ServicesThis is a cloud services platform that we used to host our service. (Privacy Policy)
CloudflareThis is a cloud CDN service that we use to efficiently deliver files required for our service to operate such as javascript, cascading style sheets, images, and videos. (Privacy Policy)
Google Hosted LibrariesJavascript software libraries such as jQuery are loaded at endpoints on the googleapis.com or gstatic.com domains, for performance and efficiency reasons. (Privacy Policy)
Features
Google Custom SearchThis is feature allows you to search the site. (Privacy Policy)
Google MapsSome articles have Google Maps embedded in them. (Privacy Policy)
Google ChartsThis is used to display charts and graphs on articles and the author center. (Privacy Policy)
Google AdSense Host APIThis service allows you to sign up for or associate a Google AdSense account with HubPages, so that you can earn money from ads on your articles. No data is shared unless you engage with this feature. (Privacy Policy)
Google YouTubeSome articles have YouTube videos embedded in them. (Privacy Policy)
VimeoSome articles have Vimeo videos embedded in them. (Privacy Policy)
PaypalThis is used for a registered author who enrolls in the HubPages Earnings program and requests to be paid via PayPal. No data is shared with Paypal unless you engage with this feature. (Privacy Policy)
Facebook LoginYou can use this to streamline signing up for, or signing in to your Hubpages account. No data is shared with Facebook unless you engage with this feature. (Privacy Policy)
MavenThis supports the Maven widget and search functionality. (Privacy Policy)
Marketing
Google AdSenseThis is an ad network. (Privacy Policy)
Google DoubleClickGoogle provides ad serving technology and runs an ad network. (Privacy Policy)
Index ExchangeThis is an ad network. (Privacy Policy)
SovrnThis is an ad network. (Privacy Policy)
Facebook AdsThis is an ad network. (Privacy Policy)
Amazon Unified Ad MarketplaceThis is an ad network. (Privacy Policy)
AppNexusThis is an ad network. (Privacy Policy)
OpenxThis is an ad network. (Privacy Policy)
Rubicon ProjectThis is an ad network. (Privacy Policy)
TripleLiftThis is an ad network. (Privacy Policy)
Say MediaWe partner with Say Media to deliver ad campaigns on our sites. (Privacy Policy)
Remarketing PixelsWe may use remarketing pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to advertise the HubPages Service to people that have visited our sites.
Conversion Tracking PixelsWe may use conversion tracking pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the HubPages Service or publishing an article on the HubPages Service.
Statistics
Author Google AnalyticsThis is used to provide traffic data and reports to the authors of articles on the HubPages Service. (Privacy Policy)
ComscoreComScore is a media measurement and analytics company providing marketing data and analytics to enterprises, media and advertising agencies, and publishers. Non-consent will result in ComScore only processing obfuscated personal data. (Privacy Policy)
Amazon Tracking PixelSome articles display amazon products as part of the Amazon Affiliate program, this pixel provides traffic statistics for those products (Privacy Policy)
ClickscoThis is a data management platform studying reader behavior (Privacy Policy)