Visual Voicemail Not Working

Step	Action	What It Fixes
1	Check your network network status	Confirms if issue is network-wide
2	Toggle aeroplane mode on/off	Re-registers SIM on your network 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 visual voicemail not working on the your mobile network, including setup steps, troubleshooting tips and useful codes.

Follow these steps in order — most issues are resolved by step 1 or 2

Setting up on your mobile network

Most call and voicemail features on your mobile network are configured directly through your phone settings or by dialling short codes. Visit the UK APN Hub for the latest codes and instructions specific to your plan.

Useful your mobile network codes

UK mobile networks use standard GSM codes for call forwarding and voicemail:

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.

Troubleshooting

If calls are not working correctly on your mobile network, toggle aeroplane mode on and off, restart your phone, and check that you have adequate signal. For persistent problems, contact the UK APN Hub.

Follow these steps in order — most issues are resolved by step 1 or 2

What is WiFi calling?

WiFi calling lets you make and receive phone calls and texts over a WiFi connection instead of the mobile network. This is useful when you have weak or no mobile signal but have access to a WiFi network — at home, in the office or abroad. Calls made over WiFi use your existing minutes and texts allowance on your plan.

Wi-Fi Calling lets you make calls over broadband when mobile signal is poor

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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.

How to enable WiFi calling on iPhone

Go to Settings → Phone → WiFi Calling and toggle WiFi Calling on This iPhone on. You may be asked to confirm your emergency address. Once enabled, your iPhone will automatically switch to WiFi calling when mobile signal is poor. A WiFi icon appears next to the carrier name in the status bar when WiFi calling is active.

Wi-Fi Calling lets you make calls over broadband when mobile signal is poor

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Enable Wi-Fi Calling for better indoor coverage

How to enable WiFi calling on Android

On most Android devices, go to Settings → Network & Internet → Mobile Network → WiFi Calling and toggle it on. On Samsung Galaxy, go to Settings → Connections → Mobile Networks → WiFi Calling. On Google Pixel, go to Settings → Network & Internet → Calls & SMS → WiFi Calling.

Wi-Fi Calling lets you make calls over broadband when mobile signal is poor

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Enable Wi-Fi Calling for better indoor coverage

WiFi calling requirements

Your network plan must support WiFi calling (most modern UK plans do). Your device must support WiFi calling. You must be connected to a WiFi network. On iPhone, you may need to update your carrier settings — go to Settings → General → About and accept any carrier update prompt.

Wi-Fi Calling lets you make calls over broadband when mobile signal is poor

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Enable Wi-Fi Calling for better indoor coverage

💡

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.

Troubleshooting WiFi calling not working

Option greyed out: Your device or plan may not support WiFi calling. Contact your network to confirm it is enabled on your account.

Calls dropping when switching between WiFi and mobile: This is normal during handover. Stay connected to WiFi or mobile to avoid dropped calls during handoff.

Poor call quality on WiFi: Move closer to your router. Check your broadband speed — WiFi calling requires at least 1Mbps upload. Try restarting your router.

Follow these steps in order — most issues are resolved by step 1 or 2

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Enable Wi-Fi Calling for better indoor coverage

Frequently Asked Questions

Why is your network mobile data not working?

your network mobile data may stop working due to an incorrect APN, a temporary network outage, an expired data plan, or a SIM issue. Follow the steps in this guide to identify and fix the cause.

How do I reset my your network APN settings?

On Android: go to Settings → Network → Mobile Networks → Access Point Names, then tap the menu and select 'Reset to default'. On iPhone: go to Settings → General → Transfer or Reset iPhone → Reset → Reset Network Settings.

Does your network have a network outage in my area?

Check the your network website or their social media channels for real-time outage information. You can also check third-party sites like Downdetector for user-reported your network outages.

Why does your network show signal but no internet?

If your network shows signal but no internet, the APN settings may be incorrect or missing. Check the APN settings on your device and compare them to the correct your network values in our APN guide.

How long does a your network outage usually last?

Most your network network outages are resolved within a few hours. For planned maintenance, your network usually notifies customers in advance. Check the your network status page for current updates.

Visual Voicemail Not Working