Is phone call possible without network?

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Have you ever thought that a call can be made even without a network in the phone but it can be done at all, because Airtel WIFI Calling has recently introduced such a facility in India, under which calls can also be made without cellular networks. The name of this new service of Airtel is 'Airtel Wi-Fi Calling'. This service has been launched especially for better voice calling in indoor location.
Earlier this facility was introduced only for Delhi NCR, and now it has been launched in Mumbai, Kolkata, Andhra Pradesh, Karnataka and Tamil Nadu as well. Airtel says that with the help of Airtel Wi-Fi Calling facility, consumers will get better signal quality even at indoor location when connected to WiFi at home or office. Through this facility, users will be able to talk on the phone for free through internet.

What is WIFI calling?

WIFI  allows you to talk with people in remote location.You do not need to be a callphone tower.You simply need a internet connection.Many time WiFi can have a weaker connection than cellular data so Voice quality can be bad if lots of people are using the WiFi hotspot at the same time. This usually happens in crowded places like mall, stadium,bus stop and many more places.

Smartphones support 'WIFI calling':

For information, let us know that this feature of WIFI Calling is currently supporting only some smartphones, including iPhone 6s and above variants, Redmi K20, Redmi K20 Pro, Poco F1, Samsung S10, S10 +, S10e, Samsung M20 And OnePlus 6, 6T, 7, 7T, 7T Pro is also included.

How to activate this service:

Before starting the process, make sure that your smartphone works on the latest operating system (OS). After this, first go to the settings of the phone and 'Enable' WiFi calling.
- Ensure that the phone has a VoLTE switch on, this will give a better experience.

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