4G calling

4G calling (also known as VoLTE) and 5G calling (VoNR) mean that your phone uses modern high-speed data networks for voice calls. In the past, mobile calls relied on older 2G and 3G networks. Today, using 4G and 5G for calls ensures better coverage, HD sound quality, and the ability to use high-speed internet while you’re on the phone. On this page, we’ll explain how these technologies work, why VoNR is the new standard for 5G, and how to make sure your handset is set up correctly.

How do VoLTE and VoNR work?

In 2026, the technology behind your calls has evolved. While VoLTE handles calls over the 4G network, VoNR (Voice over New Radio) is the equivalent for 5G. These technologies essentially treat your voice as data, allowing for a much more efficient connection.

Previously, phones would often “drop down” to older networks for calls. Now that the 3G network has been fully switched off across Ireland, your phone stays on the most powerful 4G or 5G network available to ensure your conversation isn’t interrupted.

Did you know? With 5G calling, call connection is almost instant. Because 5G is designed for massive amounts of data, you can download large files or stream video in the background while talking, without any loss in call quality.

The benefits of 4G and 5G calling

  • Crystal clear audio: High-definition (HD) voice quality that makes it sound like the person is standing next to you.
  • Instant connections: No more waiting for the call to “ring” – 5G calls connect almost the second you hit dial.
  • True multi-tasking: Browse the web or use Google Maps at 5G speeds while simultaneously staying on a call.
  • Better indoor coverage: VoLTE/VoNR provides a more stable signal inside Irish homes and office buildings.

What do you need to get started?

To access 4G and 5G calling, you need a (bill pay) SIM only or prepay plan and a compatible handset.

By 2026, almost every new smartphone sold in Ireland supports both VoLTE and VoNR. If you have a 5G-ready device, it will likely default to VoNR whenever you are in a 5G area, and seamlessly switch to 4G calling if you move into a 4G-only zone.

Do iPhone and Android support these features?

Yes, all recent iPhone and Android models are fully compatible. However, different networks may have slightly different settings. It is always a good idea to ensure your phone is running the latest software update to get the best performance from the Irish 5G infrastructure.

How to enable 4G & 5G calling

Most Irish networks now enable these features automatically. If you need to check your settings manually, here is how you do it:

iPhone (iOS)

  1. Go to Settings > Mobile Service.
  2. Tap Mobile Data Options > Voice & Data.
  3. Select 5G On or 5G Auto.
  4. Ensure the toggle for 4G Calling or VoLTE is On (on many 5G-native plans, this is now enabled by default and the toggle may be hidden).

Android (Samsung, Google Pixel, etc.)

  1. Go to Settings > Connections (or Network & Internet).
  2. Select Mobile networks.
  3. Look for VoLTE or 5G Calling and ensure the toggle is switched to the right (on newer devices, VoNR may be integrated directly into your 5G settings).

If you don’t see the VoLTE or 5G calling options, your network may have enabled them permanently in the background.

Will 4G or 5G calling affect my data usage?

No, 4G calling does not affect your data usage, and the same applies to 5G calling. Even though the call is carried over the data network, it is treated as a standard voice call. This means it is deducted from your plan’s inclusive minutes or your prepay top-up, and won’t eat into your monthly data allowance..

Is 4G calling the same as VoLTE?

Yes, 4G calling and VoLTE (Voice over LTE) are the same thing. Many Irish providers simply use the term “4G calling” to make it easier to understand. Similarly, as the networks have evolved, you might now see “5G calling” or “VoNR” mentioned. These are essentially the same type of technology, just running on the newer 5G network to provide an even more stable and modern experience. Regardless of the name, your phone will automatically choose the best available network to keep your call connected. 

Ultimately, it means a more reliable service for mobile users, with fewer dropped calls and better reach in rural areas.