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[Maintenance Notice]
We will have a server maintenance during the following time. The SkyPhone service will be available, but the maintenance might cause instability in the service during the time.
We are very sorry for any inconvenience this may cause you and appreciate your understanding.

Maintenance Time: From 9:00 am to 11:00 pm, on Tuesday, November 18, 2025 (JST)

I can't make or receive calls over a mobile network in Android.

If you can't make calls,

  • Go to "Settings" on the device > "Data usage" > Menu at the upper right corner > Turn off "Restrict background data."

If you can't receive calls (but call logs can be seen),

  • Go to "Settings" on the device >"Data usage" and scroll down > "Google Services" >Turn off "Restrict background data."

Note: The operation might be different depending on type of device.

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