VoLTE stands for voice over LTE. And LTE stands for long term evolution.
It’s a voice calls over a 4G LTE network.
In telecommunications, Long-Term Evolution (LTE) is a standard for wireless broadband communication for mobile devices and data terminals, based on the GSM/EDGE and UMTS/HSPA technologies. It increases the capacity and speed using a different radio interface together.
In simple words, VoLTE calls are voice calls made over the 4G LTE network.
It’s very much necessary that you must have an access of 4G network on your mobile to use VoLTE function as this technology do not support the 2G or 3G connections.
Voice over LTE (VoLTE) is basically an IP-based data transmission technology using IP Multimedia Subsystem (IMS) that helps in delivering both calls and data services over a 4G network.
VoLTE helps you to talk and use 4G LTE data simultaneously.
You can make calls while accessing the Internet, Once VoLTE is enabled. VoLTE calls are usually charged at the same rate as other calls.
With the help of VoLTE technology you can conduct up to six way conference calls.
The VoLTE technology is highly secured and thus cannot be taped.
You can receive an incoming call on a one SIM card even when the other SIM card is already on a call, If your phone supports dual SIM dual VoLTE.
VoLTE also provides you with a faster call connection time and higher quality voice and video calls.
Is 5G support VoLTE?
Yes, VoLTE supports 5G LTE devices and permits 5G users to receive the benefits of the voice over services effectively. But As VoLTE services are available for 4G or over 4G networks which mean 2G and 3G do not support VoLTE.
Benefits of VoLTE
Remarkable Call Quality: VoLTE make calls much faster as compare to 2G/3G voice calls. As it’s been a HD voice call, feel the much richer experience. More data can be transferred means up to three times as much data as 3G and up to six times as much as 2G.
Better Security: It offers better security and quality of services compare to 2G/3G networks. Also cannot be taped.
Better Battery Life: extends life of mobile battery. This is due to use of shorter DRx which results into improvement in device power efficiency. Now with the use of VoLTE technology, your phone need not to switch from 4G to 2G or 3G once the call finished, earlier without it this happened whenever you make or receive a call your phone has to switch. All that switching gives the battery a significant hit.
Same Network: It delivers all voice and data services over same network. Hence it does not require worrying about the legacy infrastructure.
Compatibility: As all the profiles are GSMA defined so due to this it is compatible across the world. This leads to easy roaming, availability of handsets etc.
Video calls: With the help of technology you can make a video calls over 4G, much like a Skype or team app but video calls are only possible when both parties are using VoLTE-activated devices.
Limitations of VoLTE
It’s not available everywhere on every network, you may not be able to use VoLTE If there is no data connection or 4G signaling in the area.
As VoLTE feature is not available in all mobile devices so user will neither be able to call nor able to use internet using handset.
HD voice call can only be made between two VoLTE compliant handsets.
