How to Set Up Voicemail

Step	Action	What It Fixes
1	Check your network status	Confirms if issue is network-wide
2	Toggle aeroplane mode on/off	Re-registers SIM on your network
3	Restart your phone	Clears temporary network errors
4	Check your network APN settings	Fixes incorrect data configuration
5	Re-insert SIM card	Fixes poor SIM contact issues
6	Contact your network support	Resolves account or SIM faults

This guide covers everything you need to know about how to set up voicemail on your mobile network, including setup steps, troubleshooting tips and useful codes.

Initial network setup (How to Set Up Voicemail)

Setting up calls and voicemail is normally a phone-settings or short-code job, with the UK APN Hub covering the latest codes.

Common network dial codes

UK call forwarding and voicemail all rely on the same standard GSM codes:

Divert all calls: Dial **21*[number]# and press call.

Divert when busy: Dial **67*[number]# and press call.

Divert when no answer: Dial **61*[number]# and press call.

Cancel all diversions: Dial ##002# and press call.

Check voicemail: Hold down the 1 key or dial your voicemail number.

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Fastest way to apply new APN settings

After saving, turn aeroplane mode ON for 10 seconds, then turn it OFF. This forces an immediate network re-registration — quicker than a full restart and equally effective.

If something's not working (How to Set Up Voicemail)

Try cycling aeroplane mode, restarting the phone and checking signal if calls aren't working — the UK APN Hub is there for ongoing problems.

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Troubleshooting checklist

Work through one at a time rather than skipping to the final option

Step 1Check APNStep 2Select APNStep 3Toggle flight modeStep 4Restart phoneStep 5Test data

How WiFi calling works (How to Set Up Voicemail)

WiFi calling sends calls and texts through WiFi rather than mobile signal, helpful anywhere coverage is thin but WiFi is around — home, work or travel — drawing on the usual minutes and texts.

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Troubleshooting checklist

If mobile signal fails, WiFi Calling reroutes calls through your broadband connection

Step 1Check APNStep 2Select APNStep 3Toggle flight modeStep 4Restart phoneStep 5Test data

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Enable Wi-Fi Calling for better indoor coverage

iPhone: Settings → Mobile Data → Wi-Fi Calling → On
Android (Samsung): Settings → Connections → Mobile Networks → Wi-Fi Calling → On
No extra charge — uses your existing call and text allowance. Ideal where indoor mobile signal is weak.

iPhone: switching on WiFi calling (How to Set Up Voicemail)

Enable WiFi Calling on iPhone via Settings → Phone → WiFi Calling, confirming the emergency address; a WiFi icon then appears next to the carrier name.

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Troubleshooting checklist

When mobile signal drops out, WiFi Calling sends calls over broadband instead

Step 1Check APNStep 2Select APNStep 3Toggle flight modeStep 4Restart phoneStep 5Test data

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Enable Wi-Fi Calling for better indoor coverage

Android: switching on WiFi calling (How to Set Up Voicemail)

The typical Android route is Settings → Network & Internet → Mobile Network → WiFi Calling, with Samsung Galaxy (Connections) and Pixel (Calls & SMS) differing.

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Troubleshooting checklist

WiFi Calling reroutes calls to broadband whenever mobile signal fails

Step 1Check APNStep 2Select APNStep 3Toggle flight modeStep 4Restart phoneStep 5Test data

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Enable Wi-Fi Calling for better indoor coverage

Prerequisites for WiFi calling (How to Set Up Voicemail)

You'll need plan support, device support, and an active WiFi connection — iPhones may first need a carrier update via Settings → General → About.

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Troubleshooting checklist

Should mobile signal fail, WiFi Calling picks up the call over broadband

Step 1Check APNStep 2Select APNStep 3Toggle flight modeStep 4Restart phoneStep 5Test data

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Enable Wi-Fi Calling for better indoor coverage

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Fastest way to apply new APN settings

After saving, turn aeroplane mode ON for 10 seconds, then turn it OFF. This forces an immediate network re-registration — quicker than a full restart and equally effective.

WiFi calling not working — fixes (How to Set Up Voicemail)

Greyed out usually points to a device or plan without WiFi calling support — check enablement with the provider.

WiFi-to-mobile handover can drop calls normally — remaining on a single connection avoids this.

For poor quality on WiFi calls, try router proximity, confirming 1Mbps+ upload, and a router restart.

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Troubleshooting checklist

Take them individually instead of jumping to the end

Step 1Check APNStep 2Select APNStep 3Toggle flight modeStep 4Restart phoneStep 5Test data

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Enable Wi-Fi Calling for better indoor coverage

Frequently Asked Questions About How to Set Up Voicemail

How do I contact your network UK support?

You can contact your network UK customer support through their official website, via live chat, by phone, or through their social media channels.

How do I check my your network signal strength?

Check your phone's signal bars in the status bar. For a detailed reading, go to Settings → About Phone → Status (Android) or dial *3001#12345#* (iPhone) to open Field Test mode.

What should I do if your network has no service?

If your network shows no service, try toggling Aeroplane Mode on and off, restarting your phone, and checking your network coverage map for your area. If the issue persists, contact your network support.

How do I keep my number when switching to your network?

To keep your number when switching to your network, request a PAC code from your current provider by texting 'PAC' to 65075. You can then give this code to your network when you set up your new account.

Does your network support WiFi calling?

Many your network plans support WiFi calling. Check your network account settings or your network website to see if WiFi calling is available on your plan and how to enable it.

How to Set Up Voicemail