News & Announcements

Notice on the Issue that Emergency Calls Cannot be Made from Some Dual SIM iPhone Models (Update as of December 27, 2021)

November 5, 2021

Asahi Net, Inc.

Thank you for using Asahi Net.

[Updated on December 27, 2021]
Regarding the issue released on November 2, 2021, that some dual SIM iPhone models were unable to make emergency calls, we have confirmed that the issue could be resolved by updating the iOS to 15.2.

After updating the iOS, please try making a normal voice call (NOT an emergency call) to see if the call function is working without any problem.

[The following information was released on November 2, 2021]
We are notified that emergency calls (110/118/119) cannot be made from some dual SIM iPhone models using Asahi Net LTE (ANSIM).

Please be aware of the following details.

1. Issue Occurring

Regardless of the telecommunications carrier, emergency calls (110/118/119) cannot be made from some dual SIM iPhone models, when using both SIM with voice call functionality and data-only SIM, and when data-only SIM is selected.

2. Applicable Service

Asahi Net LTE (ANSIM)

3. Applicable Devices

iPhone XS, XS Max, XR
iPhone 11, 11 Pro, 11 Pro Max
iPhone SE (2nd generation)
iPhone 12 mini, 12, 12 Pro, 12 Pro Max
iPhone 13 mini, 13, 13 Pro, 13 Pro Max

4. Workaround

Please update the iOS to 15.2 or above.

Emergency calls can be made by selecting the SIM with voice call functionality in Cellular Data.
(Go to Settings > Cellular > Cellular Data and select the SIM with voice call functionality.)

Reference: Apple Support: When unable to make emergency calls using dual SIM in Japan (in Japanese)

5. Inquiries Regarding this Issue

Asahi Net English Customer Support

Please contact us from the Contact Us page.

Thank you for using Asahi Net and we look forward to continuing to serve you.