VoIP Technologies: A Comprehensive Guide to Voice over Internet Protocol (VoIP)
VoIP Technologies: A Comprehensive Guide to Voice over Internet Protocol (VoIP)
Your complete guide to Voice over Internet Protocol
Looking for a reference on Voice over Internet Protocol (VoIP)? VoIP Technologies, your complete guide to Voice over Internet Protocol (VoIP), provides a comprehensive foundation of VoIP technology, as well as the knowledge necessary to successfully support any VoIP product.
Designed for those who have a working knowledge of data, this guide examines the major components of VoIP networks, the incorporation of VoIP into a data network, packaging and transmitting voice, maintaining voice quality, and addressing traffic issues. Many other topics are also discussed in this section, including VoIP standards, protocols, and configuring networks for VoIP. The second half of the guide focuses on designing and supporting complex VoIP solutions encountered in Wide and Local Area Networks (WAN and LAN).
This guide will also help to prepare you for the Technology Standards and Protocols for IP Telephony Solutions (920-803) and Technology Standards and Protocols for Converged Networks(920-804). Nortel Professional Certification exams.
Key Topics:
– Major components of the VoIP network
– Voice packetization
– Voice quality
– Bandwidth
– Quality of Service (QoS)
– Traffic convergence issues
– VoIP standardization and signaling protocols
– Managing VoIP networks
– Security in the VoIP environment
– Emergency services in the VoIP environment
– Technology standards and protocols for converged networks
– Network assessment
Today an understanding of VoIP is essential, because it allows network operators to lower operations costs and take advantage of advanced applications. The VoIP Technologies guide will provide you with the knowledge you need to understand VoIP, support a wide-variety of VoIP products, and prepare for Nortel Professional Certification exams.
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Categories: VOIP Products Tags: Comprehensive, Guide, internet, over, protocol, Technologies, voice, VOIP
Voice over IP makes communication easier and cheaper
It is often said that advancement in communication technology has shrank the world. While this statement is true, it needs to be modified a little. The credit for shrinking the world does not go only to the communication technology, but also to the advancement in the field of IT. Essentially, it is the advancement in the convergence of technologies rather than their isolated development in their respective areas which is to be held responsible for this shrinking of the world. This is testified by the voice over IP technology.
VOIP services as these are called in short, have been made possible by the convergence of communication and internet technologies. What is VOIP? Voice over internet protocol is a way of communicating with the others by making use of the software which can be run on computers or mobiles and by using high bandwidth internet connectivity. Using it, you would be able to communicate with the people free of cost or at a fraction of cost of the traditional telephonic methods. You are required to download and install the program on the computer or the mobile and get connected to the internet for communicating with the others.
VOIP has many benefits, which can be summed up below:
1.Allows for making free and cheaper long distance calls. The rates are a fraction of the costs involved through the traditional medium.
2.VOIP services are not just about voice communication. It allows for multiple ways of communication. You can do chatting with the people (send them I.M.), send SMS to mobiles of people, do group chatting or video conferencing, etc.
3.It also comes with additional features like call holding, diverting, barring or forwarding. You can even transfer files from computer to the other person and make adjustments or changes to the various functionalities.
4. Business VOIP services are especially helpful in managing multi-location communications among the employees. Some of the businesses make extensive use of VOIP services. These are the ones which have to deal with international clients, or the ones which are required to communicate frequently with distant employees. Some of the businesses are based on VOIP exclusively, like the call centre or the BPO operations.
5.The VOIP services can be had in different ways. You can use the computers based software to communicate, if you are working on computers. You can even attach the VOIP phone to the system to make it more convenient to receive or make calls. Even the Cordless phones can be used which can obviate the need for keep sitting at one place. If you are on the move, but are connected to the WLAN, or through the mobile internet service provider, then you can use the mobiles loaded with the VOIP software to make or take the calls.
6.Contributes to environmental improvement: If it were not for the VOIP phone services, people would have moved or traveled around more leading to greater stress on the fuel resources and contributing to environmental deterioration.
Smallbusinessphonesystem is a writer who frequently writes about services such as:- Business VOIP, VOIP services & Cordless phones.
Categories: VOIP Articles Tags: cheaper, Communication, easier, Makes, over, voice
Voice over IP?
Question by Tasm: Voice over IP?
I want to create a program to do voice over ip where multiple clients can connect. What language would I use, anyone have a code example?
Best answer:
Answer by Skotos
You could use almost any language that has support for TCP/IP and/or UDP. I think the most commonly used language right now is Java, but you can also do so in C# and C++.
I’m not sure how you’d go about recording audio (as I’ve never had to do that), but you’d probably want to setup one application as the server for all of the other clients to connect to. Then when the server receives an audio packet(s), it can distribute them to the clients.
Of course, it’s all easier said than done. =)
Have fun!
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Categories: VOIP Questions Tags: over, voice
Voice Over IP Crash Course
Voice Over IP Crash Course
Recent advances in VoIP (Voice over IP) technology have made it the solution of choice for voice service because of its low cost and increased reliability. Voice Over IP Crash Course offers practical technology coverage, while discussing the business, strategic and competitive implications of VoIP deployment in corporations. The book also covers the challenges faced by service providers as they evolve to an IP infrastructure while continuing to operate the PSTN.
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Categories: VOIP Products Tags: Course, Crash, over, voice
What is VOIP? (voice over internet protocal)?
Question by leela: What is VOIP? (voice over internet protocal)?
I always here people talking about VOIP, and im also starting a business and i heard VOIP is the best but im not 100% sure of what it is.
Best answer:
Answer by CB
It is using your internet connection to make/receive phonecalls.
So for your business, if you have DSL or broad IP provider, and you have phone line thru them, it will use the your IP provider’s data lines for phones, not traditional phone lines.
Advantage – Huge bandwidth.
Definition:
Voice over Internet Protocol (VoIP) is a general term for a family of transmission technologies for delivery of voice communications over IP networks such as the Internet or other packet-switched networks. Other terms frequently encountered and synonymous with VoIP are IP telephony, Internet telephony, voice over broadband (VoBB), broadband telephony, and broadband phone.
Internet telephony refers to communications services—voice, facsimile, and/or voice-messaging applications—that are transported via the Internet, rather than the public switched telephone network (PSTN). The basic steps involved in originating an Internet telephone call are conversion of the analog voice signal to digital format and compression/translation of the signal into Internet protocol (IP) packets for transmission over the Internet; the process is reversed at the receiving end.[1]
VoIP systems employ session control protocols to control the set-up and tear-down of calls as well as audio codecs which encode speech allowing transmission over an IP network as digital audio via an audio stream. Codec use is varied between different implementations of VoIP (and often a range of codecs are used); some implementations rely on narrowband and compressed speech, while others support high fidelity stereo codecs.
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The Reasons You Should Use Voice Over IP
Voice over IP (VoIP) was created in order to provide access to voice communication all around the world. This solves the problem of talking to someone halfway around the world. Because it’s very expensive to make long-distance international calls, VoIP is good alternative to paying large phone bills. Many benefits accrue once you begin using VoIP.
First you save a lot of money. If you are not using VoIP then you must be using Packet-Switched Telephone Network (PSTN). PSTN requires you to pay for each minute that you are on the phone and international phone calls are more expensive than domestic calls. Because VoIP uses the Internet, the only price you pay is your monthly Internet bill. You will need a broadband Internet with a decent to high speed. It is best to get an Internet package with a fixed price amount so that you can use VoIP as much as you want without the cost changing. Compared to a PSTN line, VoIP can save you up to 90% on international calls.
Secondly, more than two people can speak at a time with VoIP. You can set up conference calls with a whole team of people and communicate with them in real-time. Because data packets are compressed during transmission, more data can be handled over the carrier and more calls can be handled on one line.
VoIP requires cheap user hardware and software. The only additional hardware required besides a computer and Internet connection is a sound card, speakers, and a microphone. You do not need a telephone set or underlying equipment. There are also many software packages that you can download from the Internet to use for this purpose such as Skype.
It is also equipped with several features that make you talking experience sophisticated and fun. You are better equipped for call management and you can make calls anywhere in the world to any location in the globe. There is also Caller ID, Contact Lists, and Voicemail. When you use VoIP you can do more than just talk to people anywhere in the world-you can also send them images, video, and text files. You can speak to someone while showing yourself to them on a web cam.
VoIP is a more efficient use of bandwidth. Because 50% of conversation is actually silence, VoIP fills the empty silent spaces by not giving bandwidth to a person when they are not talking. VoIP reduces redundancy in speech patterns and gives the bandwidth to other consumers who are talking. VoIP has a flexible underlying network which makes is possible for organizations to make use of other technologies like ATM and Ethernet. It can also be used over wireless networks like Wi-Fi. VoIP systems are becoming more standardized and require less equipment so it is more fault tolerant. It can support many types of communication.
If you are using VoIP for an organization, you can still access your office or home from VoIP. Your home can be converted into a segment of the office where you can remotely use voice and fax services of VoIP. VoIP is virtually portable which is a very popular trend as of lately.
Roberto Sedycias works as an IT consultant for http://www.polomercantil.com.br
Categories: VOIP Articles Tags: over, Reasons, Should, voice
are there any fax machines that will work with voice over IP?
Question by NY: are there any fax machines that will work with voice over IP?
Best answer:
Answer by ebo
Any fax machine works with VOIP. You can even use a free fax via email from jfax or efax. I have VOIP using Skype and Meritcall at meritcall.com and I have a fax machine that I use to fax people with and I use Meritcall. But to receive, I use my jfax free version and I print them myself.
It’s hard to use Skype with fax machine because you have to get a Port Converter for Skype. Which means you have to buy a hardware that will enable your usb to phone line. Which cost about $ 30. Search for USB Skype in Google or Yahoo.
I bought my fax machine in ’89, and it’s still being used, then migrated to VOIP 4 years ago, and it still works.
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Voice over IP in Wireless Heterogeneous Networks
Voice over IP in Wireless Heterogeneous Networks: Signaling, Mobility and Security (Signals and Communication Technology)
The requirements for good quality VoIP communications are difficult to achieve in a time-varying environment due to channel errors and traffic congestion and across different systems. The provision of VoIP in wireless heterogeneous networks requires a set of time-efficient control mechanisms to support a VoIP session with acceptable quality. The focus of Voice over IP in Wireless Heterogeneous Networks is on mechanisms that affect the VoIP user satisfaction while not explicitly involved in the media session. This relates to the extra delays introduced by the security and the signaling protocols used to set up an authorized VoIP session and to the disruption caused by the user mobility during the session. Voice over IP in Wireless Heterogeneous Networks thus investigates and proposes cross-layer techniques for realizing time-efficient control mechanisms for VoIP: signaling, mobility and security.
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Voice over Internet Protocol ? Altering the way the World Communicates
It may seem like jumping into the dark but switching to a Voice over Internet Protocol telephone system, VOIP, is very simple. VOIP offers changes that can be detailed and many. These changes can be very beneficial to users who choose VOIP vendors such as Yahoo Messenger or Vonage. The world is using the phone differently thanks to VOIP.
Users should know what kind of service they wish to use before buying a new VOIP phone system. To choose the VOIP vendor that is right for you, you must compare every aspect of the services offered. If most calls being made are long distance, plans like Vonage or Skype might be helpful since they offer great long distance features. It is typical for VOIP services not to charge for long distance. This is especially the case between users on the same service. Long distance users can really benefit from establishing a network of this sort.
Lots of Voice over Internet Protocol services have a flat-rate monthly fee service. This plan lets users make unlimited calls. It is a good idea to compare services to get the greatest amount of features for your monthly fee. If a service only offers the bare minimum in features, you may want to pay a little more and get more services. For about a month, you can get a very simple package that will give you unlimited calling. This kind of deal may cause you to lose out on a lot of the great benefits inherent in VOIP.
Traditional phone services simply do not offer all the features you will find with broadband calling. VOIP offers features like emergency directory assistance numbers, call blocking, voicemail, caller ID, last number redial, call forwarding, local number portability, call waiting, and fax redirect. Really, you can get all of the features that are typical with a traditional phone company. Of course, these services are all offered with VOIP, but a lot of companies offer additional features like selecting your area code anywhere in the world, multi-ring features for calls that come while you are on another a call, global travel without long distance rates, instant connectivity to hot spots allowing you to connect with other VOIP users internationally in any internet capable area, and great back and forth connectivity with a personal computer to phone option. Additionally, full sets of contact lists can be stored on a removable hard drive.
Users who make lots of international calls may find that VOIP is just the missing piece they have been looking for. VOIP really gives lots of features to their users. This helps them to be worldwide leaders in communications at the very start of this venture. People who use VOIP services are happy with them. They say that these great services really support them in communicating around the world. Users report few, if any, problems. You don’t need to worry about VOIP disappearing.
Private electronics consultant, Cameron Tacassi knows the importance of using the proper chip inductor to help speed performance of VOIP systems as well as a custom transformer to achieve the best possible result. Cameron relies on Allied Components for his communication hardware needs.
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Categories: VOIP Articles Tags: Altering, Communicates, internet, over, protocol, voice, WORLD
Can anyone argue for or against VOIP (voice over Internet protocol) versus standard phone service.?
Question by Harlan B: Can anyone argue for or against VOIP (voice over Internet protocol) versus standard phone service.?
Do I save money by routing phone calls through the Internet. Do I have to use my laptop and a headset to answer or make calls or can we pick up any phone in the house and make and answer calls? Is the technology to new to even consider now? I am confused.
Best answer:
Answer by Irish1952
The main thing that I have heard against it is that if you ISP goes down, you don’t have a phone.
What do you think? Answer below!