What is VoLTE and what innovations does it bring?

VoLTE (Voice over LTE) is a modern technological service that allows you to make phone calls over the 4G or 5G network instead of older 2G/3G networks.

This means faster, clearer and more stable calls, without interrupting your mobile internet connection during the call.

If your phone does not use VoLTE, calls will automatically switch to older network technologies (2G/3G), just as before.

---

Who can use VoLTE?

For VoLTE to work on your phone, the following requirements must be met:

- The phone must support VoLTE.

- The manufacturer must have enabled VoLTE for the MTEL Switzerland network. Currently this applies to iPhone and Samsung devices.

- You must be roaming in a network that supports VoLTE and has VoLTE roaming enabled with MTEL.

Note: VoLTE is available in Switzerland, while availability in other countries depends on the infrastructure of the respective network operators. If you are roaming and VoLTE is not available but the partner supports 2G/3G, the call will be made via the traditional voice network.

It is expected that VoLTE will be available with most of our roaming partners by the end of 2026.

---

Advantages of VoLTE

1. Clear and stable sound

Thanks to HD Voice quality, calls are significantly clearer.

2. Faster call connection

A call connects 2–3 times faster than before.

3. Calls and internet at the same time

You can make calls and use 4G internet simultaneously without interruptions.

4. Longer battery life

The phone does not constantly switch between 4G and 3G/2G, which reduces battery usage.

---

How to activate VoLTE on your smartphone

Please make sure your device has the latest software update installed.

iPhone devices

1. Open Settings

2. Go to Mobile Data

3. Select Mobile Data Options

4. Tap Voice & Data

5. Enable VoLTE

You can also disable VoLTE at the same location.

Samsung and other Android devices

1. Open Settings

2. Select Connections

3. Go to Mobile Networks

4. Select your SIM card (e.g. Primary SIM)

5. Find VoLTE calls or VoLTE

6. Enable the option

On many models you may see a note such as: “May improve call quality.”

---

List of devices that support VoLTE

iPhone

iPhone 8, iPhone 8 Plus, iPhone X, iPhone XR, iPhone XS, iPhone XS Max, iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, iPhone 12, iPhone 12 mini, iPhone 12 Pro, iPhone 12 Pro Max, iPhone 13, iPhone 13 mini, iPhone 13 Pro, iPhone 13 Pro Max, iPhone 14, iPhone 14 Plus, iPhone 14 Pro, iPhone 14 Pro Max, iPhone 15 series, iPhone 16 series, iPhone 17 series and all future models.

Samsung

Galaxy A05s, Galaxy A06, Galaxy A15, Galaxy A15 5G, Galaxy A16, Galaxy A16 5G, Galaxy A24, Galaxy A25 5G, Galaxy A26 5G, Galaxy A34 5G, Galaxy A35 5G, Galaxy A53 5G, Galaxy A54 5G, Galaxy A55 5G, Galaxy A56 5G, Galaxy A36 5G, Galaxy XCover7 Pro, Galaxy XCover7, Galaxy XCover6 Pro, Galaxy S23 FE 5G, Galaxy S24 FE 5G, Galaxy S25 Ultra, Galaxy S25+, Galaxy S25, Galaxy S24 Ultra, Galaxy S24+, Galaxy S24, Galaxy S23 Ultra, Galaxy S23+, Galaxy S23, Galaxy S22 Ultra, Galaxy S22+, Galaxy S22, Galaxy Z Fold6, Galaxy Z Flip6, Galaxy Z Fold5, Galaxy Z Flip5, Galaxy Z Fold4, Galaxy Z Flip4, Galaxy Z Fold3 5G, Galaxy Z Flip3 5G, Galaxy Z Fold7, Galaxy Z Flip7 and all future models.