VoLTE technology - voice calling over 4G and 5G

Faster call setup, clearer audio, and simultaneous voice + data.

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Voice over LTE/NR

VoLTE: voice calling over 4G & 5G

VoLTE routes your calls over our 4G/5G data network instead of older 2G/3G voice channels. You’ll hear HD-quality audio, connect faster, and keep data working while you’re on a call.

  • HD voice clarity
  • Faster call setup
  • Fewer dropped calls
  • Voice + data simultaneously
  • Better battery than legacy fallback
  • Works with Wi-Fi Calling for indoors
Enable VoLTE Talk to support
Emergency calls (111): your device will use the best available network. Provide your exact location if requested.
What you’ll notice
Calls connect in ~1–2s
Clearer audio in busy areas
Stay on 4G/5G during calls
Video & browsing continue
Compatible device + current software required. Some imported models may limit VoLTE features.
Get started

How to enable VoLTE

Check coverage, confirm compatibility, update software, then switch it on.

1) Check coverage

Ensure you’re in our 4G or 5G coverage area.

Open coverage map
2) Confirm device compatibility

Most recent iPhone and Android models support VoLTE. Some devices sourced overseas may need carrier settings to expose the VoLTE toggle.

See compatible devices
3) Update software

Install the latest iOS/Android updates and carrier settings, then restart your phone while in good coverage.

4) Turn on VoLTE
iPhone
  1. 1
    Settings → Mobile Data → Mobile Data Options
  2. 2
    Tap Voice & Data
  3. 3
    Select 4G/5G Auto and ensure VoLTE is on
Android (paths vary)
  1. 1
    Settings → Network & Internet (or Connections)
  2. 2
    Mobile network (or SIMs)
  3. 3
    Enable VoLTE (Calls over 4G) / 4G Calling
If you don’t see the toggle, contact us—your SIM or device profile may need enabling.
Need help enabling VoLTE?

Where VoLTE is available

VoLTE operates anywhere our 4G or 5G network is available across New Zealand.

Check my address
Indoors, pair VoLTE with Wi-Fi Calling for the best experience.

VoLTE while roaming

We’re expanding VoLTE roaming with international partners. Availability depends on your destination and handset support.

  • Ensure your phone supports VoLTE roaming.
  • Keep software and carrier settings up to date.
  • Charges follow your roaming plan and call destinations.
Roaming info

Preparing for 3G shutdown

As networks worldwide retire legacy 3G, VoLTE ensures your voice service continues with better quality. If you use an older device, upgrade to a VoLTE-capable model to stay connected at home and when travelling.

VoLTE-compatible devices

We test and approve a range of iPhone and Android models. Imported devices may require specific firmware or carrier profiles.

See compatibility list

Need help?

Our NZ-based team can confirm compatibility, enable VoLTE on your SIM, and guide troubleshooting.

Contact support 0800 SCOTT NZ

VoLTE FAQs

No special surcharge from us—calls and texts are billed against your plan as usual. Roaming and international rates still apply when relevant.

Update your OS and carrier settings, insert our SIM, and restart in a good coverage area. Some imported models hide VoLTE until the correct carrier profile is installed—contact support if it’s missing.

Yes—VoLTE offers HD voice, faster setup, and allows data use during calls. It’s designed to replace legacy 3G voice as networks evolve.

In many destinations, yes—subject to partner support and your handset. Where VoLTE roaming isn’t available, voice may fall back to 2G/3G if present, or you can place calls via Wi-Fi Calling.