Saturday, March 12, 2011

What is VOIP ?

VoIP (Voice over Internet Protocol) is simply the transmission of voice traffic over IP-based networks.

VoIP services convert your voice into a digital signal that travels over the Internet. If you are calling a regular phone number, the signal is converted to a regular telephone signal before it reaches the destination. Three methods VOIP calls: PC to PC, PC to fixed-network lines, and telephone calls via IP-based internal networks. Some people use VOIP in addition to their traditional phone service, since VOIP service providers usually offer lower rates than traditional phone companies, but sometimes doesn't offer 911 service, phone directory listings, 411 service, or other common phone services. While many VoIP providers offer these services, consistent industry-wide means of offering these are still developing.

So! How VOIP Works?

As said, the interesting thing about VoIP is that there is not just one way to place a call. There are three ways one use VOIP service to make a phone call is.
  • ATA
  • The simplest and most common way is through the use of a device called an ATA (analog telephone adaptor). The ATA allows you to connect a standard phone to your computer or your Internet connection for use with VoIP. The ATA is an analog-to-digital converter. It takes the analog signal from your traditional phone and converts it into digital data for transmission over the Internet. Providers like Vonage and AT&T CallVantage are bundling ATAs free with their service. You simply crack the ATA out of the box, plug the cable from your phone that would normally go in the wall socket into the ATA, and you're ready to make VoIP calls. Some ATAs may ship with additional software that is loaded onto the host computer to configure it; but in any case, it's a very straightforward setup.
  • IP Phones -- These specialized phones look just like normal phones with a handset, cradle and buttons. But instead of having the standard RJ-11 phone connectors, IP phones have an RJ-45 Ethernet connector. IP phones connect directly to your router and have all the hardware and software necessary right onboard to handle the IP call. Wi-Fi phones allow subscribing callers to make VoIP calls from any Wi-Fi hot spot.
  • Computer-to-computer -- This is certainly the easiest way to use VoIP. You don't even have to pay for long-distance calls. There are several companies offering free or very low-cost software that you can use for this type of VoIP. All you need is the software, a microphone,speakers, a sound card and an Internet connection, preferably a fast one like you would get through a cable or DSL modem. Except for your normal monthly ISP fee, there is usually no charge for computer-to-computer calls, no matter the distance.

·         Low cost: VOIP services in the United States allow you to call anywhere in    North America at no extra charge.
·         Portability: you can take your phone converter and phone number and use them wherever you travel in the world, just as long as you have access to a high-speed Internet connection.
·         Features:  Call forwarding, call waiting, voicemail, caller ID and three-way calling are some of the many services included with VOIP telephone service at no extra charge.
·         Video-conferencing: User can enjoy the benefit of simultaneously Voice plus video call used for video conferencing.

·         Limited Emergency Calls: Traditional phone equipment can trace your location. Emergency calls are diverted to the nearest call center where the operator can see your location in case you can't talk. However, because a voice-over-IP call is essentially a transfer of data between two IP addresses, not physical addresses, with VOIP there is currently no way to determine where your VOIP phone call is originating from.
·         Sound Quality And Reliability: VOIP QoS(Quality of service) depends many factors say for example your broadband connection, your hardware, the service provided by your provider (ISP), the destination of your call etc.
·         Security: The most prominent security issues over VoIP are identity and service theft, viruses and malware, denial of service, spamming, call tampering and phishing attacks.

VOIP Protocol Stack:

Watch this out:


  1. Nice post, thanks for sharing

  2. I would like to thank you for the efforts you have made in writing this article. I am hoping the same best work from you in the future as well. In fact your creative writing abilities has inspired me to start my own blogengine blog now.

    Wholesale Carrier

  3. you can't able to explain clearly. Its a little bit typicall to understand about VOIP.

  4. Do you have what it takes to audition for Americas Next Top Model? Join Today and let your beauty shine. Audition for America's Next Top Model Today.

  5. I was searching everywhere for information on Enjoy Hair And Skin and then I found this website. Lots of Enjoy Hair And Skin related tips and tricks for free!

  6. international callings cards are accessible in an array of ante and and features. With the advice of such calling cards, you can calmly alarm all-embracing destinations at the every man amount and at the aforementioned time can accomplish bargain and accessible calls from landlines, mobiles and added options.

    free conference

  7. I appreciate the Post and I would like to read more good stuff keep it up! This is very nice article and have great information.


    1. This is really great article.. I appreciate your writing...

  8. Hey, How are going on?

    I am so interested about on your posting.It website has become differ well-known % required website for all the area of person.Actually I like this website.Your regarded topic of… is so important to me also everybody. I going to you can to viewpoint my The stress is on companies of all styles to improve earnings, cut expenses, and help preserve the earth. And movie Voip Business meetings allows you to do just that! But with so many services to select from; how do you determine which the best fit for your business is? Not to mention your budget.

    Thanks for this.

  9. allow users to call international Mobile and landline users, so that they can be part of a Multilocation Video Conference Meeting as a Audio Only user at very low cost. This can be enabled by taking VoIP service from any ISP

  10. This comment has been removed by the author.

  11. This comment has been removed by the author.

  12. Nicley written blog thanks to shared this information about VoIP.

    VoIP Service Provider

  13. Its really great and knowledgeable information you have shared. Keep me more updating.
    VoIP Service Providers
    IT Support Telford

  14. Nice post. Thanks for sharing valuable information.
    Any one wants to get Cheap International Telephone Calls may follow : Cheap International Telephone Calls

  15. Excellent blog! Thanks for sharing this useful information with us.
    Magicjack Renewal | Magicjack Plus

  16. Mind the DTMF mixed quality BADLY affects your communications. I have a real story for you; I'm calling one of my banks, they Rep is transferring me to a robot to enter my pin #... I'm entering it, and the robot can't understand the pin. The robot says to enter again... after 3 tries it gives up. ...., and it does not understand your commands due to the line in not DTMF. You must troubleshoot DTMF problems with your VoIP connection through They offer a free testing credits. You can find the solution quickly. #VoIP

  17. I enjoyed reading your article :) PLease continue publishing helpful topics like this. Regards, from Let's get gadget, a company whose into selling
    cordless phone answering machine

  18. Thank you for posting useful information...I found it intresting, Please keep posting such blogs.
    Voice Over Services

  19. Hello,

    We are doing VoIP wholesales routes business.
    We are looking A-Z CLI & Non CLI traffic.
    Aggressive rates with premium quality CLI/NON CLI routes.
    India CLI, Bangladesh CLI/Non CLI, Pakistan CLI/Non CLI & A-z CLI/Non CLI.
    Premium quality with good status routes.
    A-Z CLI & Non CLI very low rates with working routes.

    We are interest to do long term business with you, if you are interested then please contact.

    E-Mail :
    Skype : voiphaariz
    Mobile : +919747434994
    WhatsApp : +919747434994

  20. phone answering service for small business through marhaba reception helps all the business flourish more since none of the important calls are missed. virtual answering services for small businesses has highest demand of it. Call us to know more.

  21. Excellent blog! Thanks for sharing this useful information with us.

    Voice Over Services

  22. Nice Blog! When you choose Business VoIP Phones Services for your business you will get so many features like call forwarding, call waiting, conference calls, caller ID and voice mail.

  23. This blog is really very informative. I think very few people know how a Virtual receptionist can help their business. virtual answering service of Marhaba Reception will help you understand the client even when you are not available. Nobody misses an important call using virtual office receptionist. To know more about it contact us

  24. My fiance was talking about finding a VOIP service and was in need of some help. He is trying to weight the benefits of this service against the downsides and I wanted to help him. It seems to me that there is more to like about VOIP like its low cost.

  25. Detailed explanation, I was unware of these terms too! Thanks so much for sharing!

  26. Graceful written content on this blog is really useful for everyone same as I got to know. Difficult to locate relevant and useful informative blog as I found this one to get more knowledge but this is really a nice one. Small Business Asterisk PBX

  27. Very nice blog post, defined everything related to VoIP and IP Phone in very easy way. Introduction, how it works, its advantages, disadvantages. 

  28. This blog is really very informative. I think very few people know how a Virtual office assistant can help their business. Virtual assistant utilize latest technologies to deliver their services and to communicate with clients and they can handle wide variety of support services through a single point of contact. Virtual assistant can make one’s life easier and better!

  29. Hi all,

    India Cli routes
    Pakistan Cl Routes
    Pakistan Non cli
    Egypt Non cli
    Bangladesh Cli
    Ethiopia cli /Ncli
    Nigeria cli /Ncli
    and AZ Routes

    send your IP address and contact number for free testing

  30. Graceful written content on this blog is really useful for everyone same as I got to know. Difficult to locate relevant and useful informative blog as I found this one to get more knowledge but this is really a nice one. Local Phone Numbers from Any US Area