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Spag70
User level: Level 1 (10 points)

Wifi calling issues with IOS27

Since upgrading to IOS27 yesterday I am not able to make wifi calling calls on my iPhone 17. I am currently overseas but up until yesterday I could make and receive calls either on accommodation wifi or using my eSIM data package. I have tried all the tricks recommended with no success. Strangely I can still receive calls. I am with Aldi mobile which uses the Telstra network. I rang them on my husbands phone but was told to ring back tomorrow. Any suggestions appreciated.

Posted on Sep 20, 2026 6:56 AM

8 replies

SravanKrA
User level: Level 10 (454,138 points)

Oct 31, 2026 12:16 AM in response to Spag70

WiFi calls is a Carrier Specific feature. Contact your Carrier (Cellular Service Provider), the agency that issued the SIM / eSIM to you. Please see the pic below which is self-explanatory...






Note: If the Wi-Fi connection is lost when you make calls, calls switch automatically to your carrier’s cellular network using VoLTE (Voice over LTE), if available and turned on. See View or change cellular data settings on iPhone. (VoLTE calls also switch to Wi-Fi when a Wi-Fi connection becomes available.) Contact your carrier for feature availability.


When your iPhone has a low cellular signal, use Wi-Fi Calling to make and receive calls through a Wi-Fi network.

  1. On your iPhone, go to Settings > Cellular.
  2. If your iPhone has Dual SIM, choose a line (below SIMs).
  3. Tap Wi-Fi Calling, then turn on Wi-Fi Calling on This iPhone.

More items...


Make calls using Wi-Fi on iPhone - Apple Support (IN)

CJ92K
User level: Level 1 (8 points)

Oct 25, 2026 9:48 PM in response to Spag70

I have the same issue using Telstra (Australia) all iPhone users on the Telstra network that have updated to ios27 have the same issue. Telstra advised they are working with Apple on a solution and will send an email once it’s been resolved however this has been 4+ weeks now with no solution in site.

lobsterghost1
User level: Level 10 (233,174 points)

Sep 20, 2026 7:08 AM in response to Spag70

Sorry, but Wifi calling is 100% a carrier feature. You'll need to get help from your carrier who may need to roll out an update to your phone or re-provision your account.

Spag70 Author
User level: Level 1 (10 points)

Sep 20, 2026 11:58 PM in response to lobsterghost1

My carrier says they cannot help that it is an Apple issue.

viking1728
User level: Level 1 (8 points)

Oct 23, 2026 3:55 AM in response to Spag70

We are having the same issue, have you found a solution.

AndreaDearolf2
User level: Level 1 (0 points)

Oct 30, 2026 10:14 PM in response to Spag70

Same here in the states ( USA )

on ATT And my carrier wasn’t much help

come on Apple🤦‍♀️🤡💀

AndreaDearolf2
User level: Level 1 (0 points)

Oct 30, 2026 10:14 PM in response to Spag70

Figures

Dogcow-Moof
User level: Level 8 (37,177 points)

Oct 31, 2026 1:22 AM in response to AndreaDearolf2

Zero issues with WiFI calling using at AT&T 18 PM; in fact I spend a fair amount of time in poor cell areas where my phone wouldn't work at all without it.

Originally posted at discussions.apple.com/thread/256361222