voip call

How do VoIP call works

VoIP calls are on the way to make things very smooth in the world of international communication. In the era of the 21st century, where everything is evolving at a rapid rate, communication is not left behind. Technological advancements in the field of communication have totally changed the way how we connect to our loved ones around the world.

Gone are the old days when calling was limited to a handful of features. Today is the age of VoIP or Voice Over Internet Protocol. With the revolution in VoIP, calling is now more secure, cheap and faster. So the questions that often arise in an individual’s mind is what voice over internet protocol is and how it really works. I am sure that by the end of this article, your every query about VoIP is sorted out. Let’s start.

What is VoIP?

This is the first question that is often asked by people of all ages. VoIP or voice over internet protocol is a rapidly developing technology that helps us to make a call with the use of internet connection.

A VoIP call uses a series of software and hardware infrastructure rather than our traditional phone systems that use circuit transmission through cables and copper lines. In this technology, voice or audio signals are converted into packets of digital data which is then transmitted over the internet.

This allows you to make a call directly from your computer, phone or other devices that are connected to the internet. In simple terms, a VoIP call is also called IP telephony, internet telephony, broadband telephony or broadband phone service. In a nutshell, VoIP is the method that allows us to connect with users around the globe just by using the internet as the medium.

voip calls

How does VoIP calling works?

So that now we know what VoIP really is, it’s now time to get into the depths and understand how it actually works. In VoIP technology, the audio data is converted into packets of data called as codecs. These codecs are then transferred digitally using the internet connection. At the receiving end, the original audio signal is recovered by decoding these codecs, giving crystal clear voice quality to the user.

voip call


Codecs are the most important part of VoIP communication, or you can say codecs are the backbone of VoIP. Codecs help to convert analog voice signals into digital form so that it can be transmitted over the internet. Many codecs work for the smooth functioning of the VoIP call system. G.711 is one of the most important codecs, which samples audio data at 64,000 times per second. In short, codecs help in processing the audio data, which is further compressed in small fragmented packages. These small packages of data are then reassembled once it reaches the receiver’s end.

Packet Switching

VoIP telephony uses packet switching technology, rather than circuit switching used in the traditional phone system. When a telephonic conversation takes place, most of the time it is dead air, which is when neither the sender nor the receiver is speaking. Packet switching eliminates this dead air transmission, thus saving file space and in turn money. In addition to this packet switching also helps to do multitasking over VoIP. Hence you can send files, photos, videos even when your call is on a roll.

Advantages of using VoIP

VoIP has several advantages over the traditional telephone system. Few of them are listed below.

  • Easy to install and configure
  • Low-cost international calling
  • No extra cables required.
  • Portability
  • Faster communication.
  • Extra features at no more costs.

The above article addresses the question of how VoIP telephone system works along with the advantages it offers over traditional phones. Switching to VoIP can help you to save money on communication services, so if you are a fan of international calling, VoIP maybe your good to go choice.

VoIP is that innovation in the field of technology which has transformed the way we communicate with our businesses and loved ones all around the world. With its abundant features such as lower costs, VoIP is rapidly becoming a standard method of communication among business and family members. 

Know all the benefits that that VoIP calls can provide. Also, here is why saifglobal.net is the best and the cheapest VoIP calling service provider.

cheap international calls

How to make cheap international calls?

While living abroad, we often look for services with cheap international calls. Communicating with our family and friends back home is a necessity. Whenever we think of making International long-distance calls, the first thing that strikes our minds are the expensive phone bills.

But international calling does not have to cost a fortune at all times. In fact, in some cases, it can be free. The advancements in technology have made it easier for us to connect with our loved ones around the globe.

In this modern era, no one should be paying hefty sums for making long-distance phone calls. There are a variety of options to make and receive low-cost domestic and international calls. 

Here’s a list of services that you can use to make affordable calls to other countries—

International calling cards

If you are a person who likes to keep things simple, this may be a good option for you. By using international calling cards of any popular service provider, you can turn your local phone into relatively cheap international calls. These call cards come with a specific amount ($10, $20, $50) worth of talk time.

After scratching at the back, a code appears which you need to dial. This will route your call to your desired number. Your credited time will be deducted based on minutes you consume on the call. A significant disadvantage of using an international calling card is that you will be charged the local call rate as well.

A prepaid international calling card is also a sought-after option, which is readily available at gas stations, airports and supermarkets. In this type, you need to dial the toll-free number given on the back of the card and after entering the pin; you can dial the desired number. The calling tariffs can range from 2 to 5 cents a minute. One must read all the details carefully while using these choices as many companies charge maintenance and recharging fees additionally.


A grandmother with tablet making videocall with small grandson at Christmas time.

Skype is a popular choice of many consumers who want to make cheap international calls worldwide. To use Skype’s calling feature, you need to download the app on your phone or personal computer. You can make a voice or video call directly from one person to another person for free. To be able to call on landline or mobile through Skype, you need to buy its premium packages.

These plans charge you on per minute or flat monthly basis; you can choose what suits you the best according to your needs. There are a few drawbacks of using Skype for making international calls. You have to pay extra for the group and conference calls. Also, your Skype talk time credit will expire after 180 days of inactivity. Skype do provide cheap international calls but at times due to network congestion, it may be challenging to get a good line through Skype, resulting in poor voice/video quality

VoIP Calling Services

VoIP Call

VoIP is the best and cheapest option available to make seamless and cheap international calls. VoIP or voice over internet protocol is a rapidly developing technology to make long-distance cheap international calls at extremely affordable rates. Unlike the traditional PSTN phone systems, VoIP uses the internet for making phone calls.

In VoIP, voice is converted to data packages which are then transmitted over the internet. At the receiving end, the original voice signal is later recovered from these data packets, giving crystal clear communication service. The best virtue of using VoIP is that it doesn’t need any additional software or hardware devices, just by using your phone or computer; you can connect a low-cost internet call to the person located at any part of the world. 

SaifGlobal is a leading VoIP service provider that offers a variety of packages starting from 1.99 cents/minute. People who like to talk more can subscribe to their flat monthly plans at saifglobal.net 

Read this blog post to know more about the benefits of VoIP calls.

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Apart from the ways mentioned above, there are many apps such as WhatsApp, Viber, Facetime which offer international calling for some monthly costs. Some services also require the app to be installed in sender’s and receiver’s phone in addition to the internet connection.

That’s it; now there are no more excuses to not calling your family and friends back home. Choose the one that suits you the best and stop letting your loved ones worry about you all the time.

Out of all the ways, we recommend you to choose VoIP calling because it gives you the freedom of talking without worrying about the bill. VoIP’s cheap international calls comes with crystal clear voice quality and an overall exceptional experience as compared to other calling services.