Updated on November 5, 2026.
If Wi-Fi Calling stopped working after an iOS update, make sure it’s enabled for the phone number you use. Then open Control Center and look for Wi-Fi next to your carrier’s name. If the label is missing or calls fail, try the same test on another Wi-Fi network. That helps you decide whether to check your router or ask your carrier about your line.
On October 13, an iPhone SE (3rd generation) owner reported that outgoing Wi-Fi calls stopped after installing iOS 27.0.1. They said the same SIM still worked for Wi-Fi Calling in an older iPhone. The first phone later started working again, and the owner was unsure why. In early November, two other owners described intermittent or unavailable Wi-Fi Calling in the same Apple Community discussion.
Start with what you see
| What you see | What to check first |
|---|---|
| Wi-Fi Calling is missing or won’t turn on. | Check the selected line under Cellular. Ask your carrier if Wi-Fi Calling is active on that number. |
| Wi-Fi Calling is on, but there’s no Wi-Fi label next to the carrier name. | Restart your iPhone, then look for the label on another Wi-Fi network. |
| Wi-Fi Calling works on a second network. | Focus on the first network. Restart your home router or ask whoever manages the network to check it. |
| The Wi-Fi label appears, but calls fail on two networks. | Test a call in each direction. Tell your carrier whether outgoing calls, incoming calls, or both fail. |
| Calls also fail over cellular. | Check your SIM or eSIM, coverage, and account with our guide to failed phone calls. |
1. Check Wi-Fi Calling for the right phone number
- Open Settings > Cellular. If you use two SIMs or eSIMs, tap the line you want to test.
- Tap Wi-Fi Calling and turn on Wi-Fi Calling on This iPhone. Follow the prompts, including confirming your emergency address if your carrier asks for it.
- While connected to Wi-Fi, open Control Center. When you see Wi-Fi next to the carrier name, use the Phone app to call someone who can answer. If you use Dual SIM, place the call from the line you’re testing. Ask them to call your number back.
For an overview of what the feature does and how to set it up on other phones, see our Wi-Fi Calling setup guide.
2. Try another Wi-Fi network
Restart your iPhone, then try the call again. If it still fails, connect to another Wi-Fi network you trust and repeat the Control Center and call checks. You can also turn Wi-Fi Calling off and back on for that line. Give each change about two minutes before moving on, as described in Apple’s Wi-Fi Calling troubleshooting guide.
If the same iPhone and line work on the second network, start with the first network. At home, try a call near the router, and restart it if the problem persists. For a work or school network, ask the administrator whether it supports Wi-Fi Calling.
3. Check for carrier settings updates and contact your carrier
With the iPhone online, open Settings > General > About. Follow the prompt if a carrier settings update appears. These updates come from your mobile provider and can affect features such as Wi-Fi Calling. You can check the installed version next to Carrier on that screen. See Apple’s carrier settings instructions.
Check Settings > General > Software Update for an available iOS update. If Wi-Fi Calling is still unavailable, ask your mobile provider to confirm that the feature is supported and active for your number. Have these details ready.
- Your iPhone model and iOS version, both listed under Settings > General > About.
- Whether the Wi-Fi Calling switch is missing, refuses to turn on, or stays on.
- Whether the carrier’s Wi-Fi label appears on either network and whether incoming or outgoing calls fail.
4. Reset network settings if the problem continues
If your carrier has checked the line and the earlier steps haven’t helped, consider a network reset. Have your Wi-Fi passwords ready. The reset clears saved Wi-Fi networks and passwords and resets cellular settings. It can also remove VPN settings you added yourself. For a work iPhone, check with IT first. See Apple’s explanation of the reset options.
Go to Settings > General > Transfer or Reset iPhone > Reset > Reset Network Settings. Rejoin Wi-Fi, check the Wi-Fi Calling switch for your line, and try another call.
Frequently asked questions
How can I tell if my iPhone is ready to make a Wi-Fi call?
Open Control Center and look for Wi-Fi beside your carrier’s name. The Wi-Fi fan icon indicates your phone is connected to a wireless network. The carrier label tells you Wi-Fi Calling is available.
Can Wi-Fi Calling work on one line and be missing on the other?
Yes. Wi-Fi Calling depends on what each carrier offers for that line. Check the setting for each number under Settings > Cellular, and ask your carrier about the line missing the option. See Apple’s Dual SIM guide.
What if my SIM still works for Wi-Fi Calling in an older iPhone?
Tell your carrier which phone works and which one fails, along with their iOS versions. That gives support a way to compare how the same line behaves on the two devices.
Why am I being asked to confirm my address?
Your carrier may require an address for emergency services when you enable Wi-Fi Calling. Follow the prompt to enter or confirm it. Ask your carrier for help if they can’t verify the address.
What if only incoming calls fail?
Ask someone you know to call your number while the carrier’s Wi-Fi label is visible. If outgoing calls work but their call goes straight to voicemail or never rings, also check Focus, blocked numbers, and call forwarding. See Apple’s guide to incoming and outgoing call problems.