Conditional Call Forwarding Guide

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 conditional call forwarding guide on your mobile network, including setup steps, troubleshooting tips and useful codes.

Getting set up on your network (Conditional Call Forwarding Guide)

Configuring these features is usually a matter of phone settings or short codes, with the UK APN Hub covering the current ones per plan.

Handy network short codes

Call forwarding and voicemail follow the same standard GSM codes 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.

💡

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 (Conditional Call Forwarding Guide)

Calls not working correctly usually need an aeroplane mode toggle, a restart, and a signal check, with the UK APN Hub for anything persistent.

📶

Troubleshooting checklist

Go through them individually in order — skipping ahead tends to waste time

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

Related: What is WiFi calling? (Conditional Call Forwarding Guide)

WiFi calling shifts calls and texts onto a WiFi connection in place of mobile signal — ideal for home, office or travel locations with weak signal but available WiFi, using the existing allowance.

📶

Troubleshooting checklist

WiFi Calling picks up voice calls over broadband the moment signal drops

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

💡

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.

Related: How to enable WiFi calling on iPhone (Conditional Call Forwarding Guide)

On an iPhone, Settings → Phone → WiFi Calling lets you toggle it on and confirm the emergency address — poor signal then triggers auto-switching, shown via a status bar icon.

📶

Troubleshooting checklist

WiFi Calling handles dropped signal by sending calls over broadband instead

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

💡

Enable Wi-Fi Calling for better indoor coverage

Related: How to enable WiFi calling on Android (Conditional Call Forwarding Guide)

The general Android route is Settings → Network & Internet → Mobile Network → WiFi Calling, though Samsung and Pixel differ.

📶

Troubleshooting checklist

WiFi Calling uses broadband to carry calls when mobile signal fails

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

💡

Enable Wi-Fi Calling for better indoor coverage

Related: WiFi calling requirements (Conditional Call Forwarding Guide)

The essentials: plan support (standard on most UK tariffs), device compatibility, and live WiFi — plus an iPhone carrier check at Settings → General → About.

📶

Troubleshooting checklist

WiFi Calling shifts voice calls onto broadband whenever signal falls away

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

💡

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.

Related: Troubleshooting WiFi calling not working (Conditional Call Forwarding Guide)

Greyed-out WiFi calling usually means unsupported device or plan; confirm with the network that it's active on the account.

This is a normal handover quirk when moving between WiFi and mobile — staying connected to one avoids dropped calls.

Improve poor WiFi call quality by moving closer to the router, confirming upload speed of at least 1Mbps, and restarting it.

📶

Troubleshooting checklist

Work through each one in order; jumping ahead usually wastes time

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

💡

Enable Wi-Fi Calling for better indoor coverage

Frequently Asked Questions About Conditional Call Forwarding Guide

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.

Conditional Call Forwarding Guide