WiFi Calling: How To Call From Your Smartphone In The Absence Of Coverage
In Italy, WiFi calling is still little known. Yet it is a valid alternative to easily solve coverage problems in those areas of the country or in those environments (underground meeting rooms, warehouses, server farms, bank vaults, etc.) where the signal from cellular networks does not reach.
In fact, with WiFi calling, the smartphone turns into a terminal that uses the VoIP (Voice over Internet Protocol) paradigm. The mobile phone connects to a proprietary or public WiFi network.
This means that the audio quality is directly related to the quality of the connection. It is also true that the so-called Quality of Voice (QoL), linked to the Quality of Service ( QoS ), also depends on the application.
Wanting to make a comparison, the voice quality in WiFi calling is comparable to that obtained with calls made via WhatsApp, with the advantage, however, of calling and receiving calls with your mobile number.
Without forgetting that, for high definition of the voice on the IP network, 30 kbps per second are sufficient. Which mitigates potential bandwidth bottlenecks.
The difference between WiFi calling and instant messaging apps
Today, several apps rely on VoIP to allow you to make calls over an Internet connection.
Just to mention the most widespread, it is estimated that all over the world, the voice and video calls that pass through WhatsApp amount to 2 billion minutes a day.
The difference between WiFi calling compared to the Facebook home application and similar instant messaging systems, which also allow you to call, lies in the mechanism of reciprocity.
Whoever makes and who receives the call, whether audio or video, must have the same app installed on their smartphone. A constraint that WiFi calling is not subject to.
The ideal tool for smart working
There is another advantage that WiFi call offers over the applications listed above.
It is the possibility of reaching fixed numbers and mobile phones present in your address book or by typing them directly on the device keyboard.
Not only. Thanks to WiFi calling, your smartphone can also become a fully-fledged corporate cordless phone that receives calls sorted by the office switchboard regardless of whether you are in your workstation, at home, or in a coworking space.
WiFi calling, in this sense, is the guarantee of greater flexibility and is a candidate to equip smart working with the most appropriate enabling technology to make “agile work” effective.
The advantages of WiFi calling abroad
An important aspect also concerns the use of WiFi calling abroad.
With a local SIM and WiFi calling active, it is possible to use the data connection of the SIM or a WiFi network (in the hotel, at the airport, at the restaurant, etc.) to continue making and receiving calls with your mobile number, as if was in Italy, at no additional cost.
Thus, it is possible to reduce the costs generated by roaming significantly.
We are talking about a potential saving of thousands of euros per year, like all Italians who work permanently outside the national territory or who have to make several trips across the border can testify.
WiFi calling in the age of social distancing
In this period of uncertainty related to Covid, companies tend to favor remote or smart working methods. WiFi calling can be the ideal solution for companies and workers.
In fact, the service allows you to use your smartphone even in those places, such as mountain regions and coasts, where many Italians have second homes and the mobile network is not very present—an answer to harmoniously reconcile private life and professional activity.
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