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Home - Virtual Phone Number - What Is WiFi Calling and How Does It Work?
Reviewed by : Prasanta Raut
Network coverage for calling has been improving throughout the world. However, there still are many geographical regions where there is poor or no network coverage, especially in remote and rural areas. This is where WiFi calling comes in.
Using Wi-Fi calling, users can make and receive calls without any cellular network coverage. Moreover, Wi-Fi calling is much more cost-effective which has made it an ideal alternative to traditional cellular calling.
So, we can say that Wi-Fi calling is one of the new telecommunications technologies that has revolutionized traditional calling. Let’s learn more about what is WiFi calling and how it works.
Table of Content
WiFi calling is a recent telecommunications technology that enables calling via a WiFi network, which means you do not need a regular cellular network. In short, you can still make and receive calls when your phone does not have a cell network.
Wi-Fi calling can be beneficial when you are traveling to a remote or rural area where you have access to Wi-Fi. Or there might be dead spots in your home or work where there is no cellular network, in these cases, you can use wifi calling or seamless communication.
But remember, your phone must support Wi-Fi calling, and your carrier must support this feature.
Most carriers and smartphone brands support these features but you can check if there are any additional charges for using this service.
As WiFi calling implements VoIP technology, people often confuse it with the virtual phone system. However, they are totally different from one another.
Traditional cellular calling, also known as cellular telephony, is the process of making and receiving phone calls using a cellular network. Traditional cellular calling involves using some specialized and sophisticated infrastructure and technology to establish voice communication between two or more users or callers.
WiFi calling works in a simple way. When you make a call, your phone automatically connects to the best WiFi that is available in the same network in your area. After that, your voice is converted into small data packets. After the voice is converted, it gets transferred through the internet. This process is known as VoIP technology.
First of all the data packets are transferred to your carrier’s server and then it is transferred to the recipient’s phone where the data packets are converted back to voice. This way, the communication occurs via Wi-Fi calling.
However, there are various other steps that are usually not seen. For example, during the transmission process, the data packets are encrypted for data security.
WiFi calling is a simple process but requires many steps for successful and high-quality calling and seamless communication. So, WiFi calling uses two technologies VoIP (Voice over Internet Protocol) and SIP (Session Initiation Protocol). Let’s learn about them in detail.
WiFi calling uses VoIP (Voice over Internet Protocol) technology to enable communication over the Internet. It includes digital conversion, packetization, transmission, network routing, reassembly, and analog conversion.
Session Initiation Protocol is an important communication protocol for WiFi calling. It is used for starting, maintaining, and ending real-time communication and applications. Here is how it works.
There are a few requirements for WiFi calling like devices which has an operating system that supports WiFi calling.
In iOS, any model after the iPhone 5s that has iOS 9 or later supports WiFi calling. Similarly, talking about Andriod, any device that has Android 5.0 (Lollipop) or later usually supports WiFi calling.
WiFi calling also has a number of network requirements, some of which are as follows:
Using WiFi might not always be a simple and easy process as there are some issues and complexities that come with using this feature. However, there are also various troubleshooting which can come in handy. So, here are some major issues that you might face while using this service and the best troubleshooting steps.
Always remember that there are security and privacy considerations that come while using WiFi calling services despite their convenience. Here are some considerations you should make while using this feature.
Remember Hotspots in public places may be less secure for attackers and hackers. It might be prone to unethical acts like eavesdropping and unwanted access to your data.
WiFi calling has become a common alternative to traditional cellular calling. The fact that you can call someone even when you do not have network coverage has made this an ideal feature for those who like or are traveling to rural or remote areas.
You can go through the requirements, issues, and troubleshooting as mentioned above for the best use of this feature.
Wi-Fi calling allows you to make and receive phone calls over a Wi-Fi network instead of a cellular network which can be very beneficial in geographical areas with poor or no cellular service reception.
Wi fi calling work is good as you can make calls with Wi-Fi even when there are no cellular networks. Likewise, it is great for battery saving and call quality, just remember that your Wi-Fi network should be stable for the best use.
No, both callers do not need Wi-Fi calling. Only the caller who is making the call needs to have Wi-Fi for calling. The receiver can engage in the call via the cellular network or Wi-Fi.
The primary difference between Wi-Fi calling and cellular calling is that in Wi-Fi calling the calls are routed via the Wi-Fi network, while in a cellular connection, calls are routed via established cellular networks.
Wi-Fi calling is usually free, however, carriers might change some additional charges depending on the plan.
Prasanta is the founder and visionary CEO of Dialaxy. He is on a mission to redefine the landscape of SaaS solutions, infusing creativity and ingenuity into every aspect of Dialaxy’s offerings. His fervent dedication to simplifying sales and support processes drives Dialaxy’s forward momentum, delivering unparalleled value to businesses of all sizes. Embark on a transformative journey with Prasanta and Dialaxy as they pave the way for a new era of sales and support excellence.
Prasanta Raut