Wi-Fi Calling, VoLTE and 5G: How modern calling technologies work and when do they really offer value to the user
The simple guide to understanding your new mobile services
Do you keep hearing about Wi-Fi Calling, VoLTE and 5G, but are you not sure what they really mean? Will they really help you or are they just marketing gimmicks? In this article we will see in simple words what each service does, what advantages it offers and – most importantly – whether it works properly on Greek networks.
📱Wi-Fi Calling: Calls Over the Internet
What is Wi-Fi Calling?
Wi-Fi Calling allows you to make and receive calls over the internet (Wi-Fi) instead of your traditional cellular signal. Think of it as a "fallback" when your cell signal is weak or nonexistent.
How does it work in practice?
When you are in a place with good Wi-Fi but no mobile signal (e.g. underground, mountainous area), your mobile phone automatically sends calls over the internet. You don't understand the difference – you call normally from your phone book.
Advantages of Wi-Fi Calling
Restrictions in Greece:
In Greece, Wi-Fi Calling is not available on all providers and on all mobile phones. Cosmote and Vodafone support it on selected models (mainly iPhone and Samsung Galaxy). Nova has not yet activated the service widely. Also, you have to activate it manually from the mobile settings.
When is Wi-Fi Calling worth it?
It's worth it if you live or work in areas with poor signal but have stable internet. It's also ideal for those who travel abroad frequently and want to avoid roaming charges.
📞VoLTE: High Definition Calls
What is VoLTE?
VoLTE (Voice over LTE) means that calls go over the 4G network instead of the old 2G/3G. In the old days, when you made a call, your phone would "drop" from 4G to 2G for the call. With VoLTE, it stays on 4G and the call starts immediately.
Simple words: It's like talking on the fast road (4G) instead of the old highway (2G). The result: faster connection and better sound.
VoLTE Advantages
Situation in Greece
All three major carriers (Cosmote, Vodafone, Nova) support VoLTE. However, you need a compatible phone and often have to enable it yourself from the settings. Most modern phones (from 2018 onwards) support it.
Check if your phone has VoLTE: Go to Settings → Mobile Network → Select “Enable VoLTE” or “HD Calls.” If you don’t see this option, your phone may not support it.
When is VoLTE worth it?
Almost always! If your phone and carrier support it, there's no reason not to have it enabled. It's free and significantly improves the calling experience.
🚀5G: The New Fast Network
What is 5G?
5G is the fifth generation of mobile networks – the successor to 4G. It offers much faster internet speeds, less latency and better connectivity in densely populated areas.
What can you do with 5G?
Download a movie in seconds, play online games without lag, watch high-definition videos without buffering, or make video calls with excellent quality even in a crowded stadium or concert.
5G Advantages
5G restrictions in Greece
The situation in Greece (2025):
5G is available in major cities (Athens, Thessaloniki, Patras, etc.) and is gradually expanding. However:
→ Coverage is not ubiquitous – only in select areas.
→ You need a phone that supports 5G (the newest models from 2020 onwards).
→ Some providers charge extra for 5G or only offer it in more expensive packages.
When is 5G worth it?
It's worth it if you live or work in an area with 5G coverage, do a lot of mobile internet use (streaming, gaming, work), and your phone supports it. But if you mostly use Wi-Fi or live in an area without 5G, 4G is still excellent and sufficient.
️Comparison: What to Choose?
| Service | What It Offers | When is it worth it? | Availability Greece |
|---|---|---|---|
| Wi-Fi Calling | Wi-Fi calling in areas without signal | If you have a signal problem at home/office or while traveling | Limited – only on selected models |
| Volta | High quality calls over 4G | Always – no cost and improves calls | Broad – across all providers |
| 5G | Very fast internet and fewer delays | If you live in a 5G area and use it a lot | Medium – mainly in urban centers |
💡Practical Advice
1. Check compatibility: Check if your phone supports these services. Usually models from 2019 and later support them.
2. Enable VoLTE first: It's the easiest and most useful improvement you can make right away.
3. Try Wi-Fi Calling if you have a signal problem: Contact your provider to activate the service.
4. Don't rush for 5G: If 4G works for you, there's no need to change your phone or provider. 5G will become more affordable and widespread over time.
🎯Conclusion
Wi-Fi Calling, VoLTE, and 5G are useful services, but their value depends on your needs and your region. VoLTE is the easiest option for everyone. Wi-Fi Calling solves signal problems. 5G is the future, but don't rush to adopt it if you don't need it immediately. Check with your provider for availability, check your phone's compatibility, and enjoy a better communication experience!
Its creator LoveForTechnology.net — an independent and trusted source for tech guides, tools, software, and practical solutions. Each article is based on personal testing, evidence-based research, and care for the average user. Here, technology is presented simply and clearly.
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