What is VoLTE ?

What is VoLTE:

VoLTE ( voice over long term evolution ) is a standard for high-speed wireless communication for mobile phones and data terminals, or in a more simple lanuguage,  VoLTE refers to voice calls that are made over a 4G LTE network.

It is different from traditional calls which are made by using CSFB(circuit switched fall back), a system that switches back to 2G or 3G technologies just before connecting a call.

Benefits of  VoLTE :

#1 Improved call quality:

This is one of the best benefits of VoLTE, it offers superior call quality to 2G and 3G calls,the reason behind this is much more data can be transferred over 4G as compared to 2G and 3G , more data transfer results in more clear tone and voice, and it makes call experience much better.

#2 Battery life:

As we already mentioned above that  when you make calls by using CSFB it switches back from 4G to 3G or 2G to make calls, and once the call is finished it has to re-establish connection to the 4G network and this process requires a significant amount of power and user gets lesser battery life.

But when you make calls using VoLTE technology it uses a constant 4G service, and there is no process like switching back to 3G or 2G and again searching for a 4G network, so this results in improved battery life.

Disadvantages of VoLTE :

#1 Limited devices :

Not all of the devices support VoLTE technology, there are only limited devices which support VoLTE.

#2> HD voice calls can be made only between two VoLTE devices, if VoLTE handset calls any other network, then only standard call quality can be achieved not HD quality.

#3 Requires data connection:

This is one of the major disadvantages of VoLTE, if you want to make HD calls you will always require a 4G connection.If there is no 4G signaling in the area user will not be able to make HD video calls.

This is all about VoLTE with its advantages and disadvantages, you can read our other articles:

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