WiFi Calling Not Working
| 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 wifi calling not working on your mobile network, including setup steps, troubleshooting tips and useful codes.
Troubleshooting checklist
Move through them in order; each is built to follow the last
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.
Setting up on your mobile network (WiFi Calling Not Working)
Most call and voicemail features are configured through phone settings or by dialling short codes — the UK APN Hub has the latest codes for your plan.
Useful mobile network codes (WiFi Calling Not Working)
The GSM codes below for forwarding and voicemail are identical on every UK network:
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.
Fixing common issues (WiFi Calling Not Working)
If calls aren't working correctly, try toggling aeroplane mode, restarting the phone, and checking signal strength. For persistent issues, contact the UK APN Hub.
Troubleshooting checklist
They work as a sequence, so continue on if a step doesn't help
What does WiFi calling do? (WiFi Calling Not Working)
WiFi calling routes calls and texts over a WiFi connection rather than the mobile network — handy anywhere mobile signal is weak or absent but WiFi is available, whether at home, at work or travelling. It draws on the same minutes and texts allowance as normal.
Troubleshooting checklist
WiFi Calling hands calls off to your broadband whenever the mobile signal is too weak to carry them
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.
Turning on WiFi calling on iPhone (WiFi Calling Not Working)
On iPhone: Settings → Phone → WiFi Calling, then switch on WiFi Calling on This iPhone. An emergency address confirmation may be needed. Once active, a WiFi icon shows beside the carrier name in the status bar.
Troubleshooting checklist
When mobile signal can't carry a call, WiFi Calling passes it to broadband instead
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.
Turning on WiFi calling on Android (WiFi Calling Not Working)
Most Android phones: Settings → Network & Internet → Mobile Network → WiFi Calling. Samsung Galaxy: Settings → Connections → Mobile Networks → WiFi Calling. Pixel: Settings → Network & Internet → Calls & SMS → WiFi Calling.
Troubleshooting checklist
WiFi Calling switches calls to broadband the moment mobile signal gets too weak
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.
What you need for WiFi calling (WiFi Calling Not Working)
Three things are needed: a plan that supports WiFi calling (most current UK plans do), a compatible device, and an active WiFi connection. iPhone users may also need a carrier settings update via Settings → General → About.
Troubleshooting checklist
If mobile signal isn't strong enough, WiFi Calling routes the call over broadband
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.
Fixing WiFi calling issues (WiFi Calling Not Working)
If the option is greyed out, the device or plan may not support WiFi calling — check with your provider that it's enabled.
Dropped calls during WiFi-to-mobile handover are normal — staying on one connection avoids the interruption.
If WiFi call quality is poor: get closer to the router, confirm upload speed is at least 1Mbps, and try a router restart.
Troubleshooting checklist
Try them one after another — they're designed to build on each other
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.