vowifi launched in india? what is vowifi ?what is voLTE?

If you are calling someone , then your phone transmit signals to your tower and with the same frequency,  you receive the signals accordingly. Now what ,if  your tower is not in range or have low speed of network  ,at more indoor places. How to talk with anyone??Or make phone  calls possible??how to deal with dropping of  phone calls due to  coverage issues ?For resolving these issues ,the service providers think of launching vowifi. Before you know what is vo wifi. you should know what is voLTE.

What  Is voLTE?

voLTE stands for voice over LTE(long term evolution). It is a wireless communication for phone calls through your internet. High speed 4G wireless network uses LTE technology. Now according to the frequency of your tower signals, you can make phone calls using your 3G, 4G network.  your skype calls , what'sapp calls, calls in google duo are the examples of your voLTE network.

Why there was need of vowifi? how does vowifi works?

But this voLTE created one problem. If you face network coverage problems like when your tower or LTE network(3g 4g)  can't provide you signals with better frequency. These voLTE calls will affect because through your 3G , 4G network  ,you are sending your voice to anyone. And it will create same problem as before. To resolve  this problem, they launched a new service vowifi i.e, voice over WIFI. Now, you can make voice calls with the internet speed of your wifi router. If your  LTE network is slow at indoor places, vowifi help you by using your wifi's frequency and provide you better quality of voice calls. But as we know  that public wifi's are not secure. In between the connection anyone can decrypt your voice/data.  That's why initially , it was creating problem to launch vowifi in india.  To secure the data, they have established a VPN connection with all the wifi routers. So that no one can hack your voice by man in the middle attack.

After setting up all the requirements, finally vowifi is launched in india. vowifi uses voIP (internet protocol)technology to transfer your voice into packets through your internet.These packets can be transmitted over any compatible network found. Because if somehow your mobile  network is slow, then automatically it switch to some other network to provide you better voice calls. But you should have a sim in your phone, because it is not at all a free service. Through the regular plans of the telecom companies, your balance will be taken. Airtel, jio and BSNL are providing these services to their customers .