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Difference between LTE and VoLTE
We are evolving day by day in the way we use mobile technology. In this article, you will learn what terms like LTE and VoLTE mean, how these two technologies differ from each other, and which is the better one.
What is LTE?
LTE stands for Long Term Evolution and is commonly known as 4G. It provides high-speed internet connectivity on your mobile phone with faster data transfer rates compared to 3G networks.
However, LTE has a significant limitation: when you receive a voice call while using data services, the internet connection stops or significantly slows down. This happens because LTE uses circuit-switched technology for voice calls, which requires switching from data mode to voice mode. In India, Airtel launched its first LTE service in 2012.
What is VoLTE?
VoLTE stands for Voice over LTE and is pronounced as "Vee-O-LTE". This technology allows you to simultaneously use voice and data services over the same 4G network without affecting voice quality. Unlike traditional LTE, VoLTE uses packet-switched technology for voice calls, treating voice as data packets.
With VoLTE, you can browse the internet, use apps, and maintain high-quality voice calls at the same time. The voice quality is superior to traditional calls because it uses HD Voice technology, providing clearer and more natural-sounding conversations.
Key Differences between LTE and VoLTE
| Aspect | LTE | VoLTE |
|---|---|---|
| Full Form | Long Term Evolution | Voice over Long Term Evolution |
| Simultaneous Usage | Cannot use voice and data simultaneously | Supports both voice and data at the same time |
| Voice Quality | Standard voice quality, degrades during data usage | HD voice quality, remains consistent |
| Call Setup Time | Slower call connection | Faster call establishment (typically 2x faster) |
| Video Calling | Requires third-party apps (WhatsApp, Skype) | Native video calling support |
| Technology | Circuit-switched for voice | Packet-switched for voice and data |
Advantages of VoLTE over LTE
-
Superior voice quality − HD Voice technology provides clearer, more natural sound
-
Simultaneous connectivity − Use internet and make calls at the same time without interruption
-
Faster call setup − Calls connect approximately 50% faster than traditional LTE
-
Better coverage − VoLTE can work on higher frequencies (800MHz+), extending reach from cell towers
-
Native video calling − Built-in video calling without requiring additional apps
-
Battery efficiency − More efficient use of device battery compared to traditional voice calls
Conclusion
VoLTE represents a significant advancement over traditional LTE by enabling simultaneous voice and data usage with superior call quality. While LTE provides fast data speeds, VoLTE enhances the overall mobile experience by treating voice as data, resulting in better connectivity and user experience.
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