The sound quality is not good. There is a large delay.

If you find the sound quality is not good or there is a large delay, please try the following.


  • Go to "Settings" on the device > Switch on/off "Mobile Data Communication."
  • Go to "Settings" on the device > Switch on/off "Wi-Fi."


  • Go to "Settings" on the device > "More" > Switch on/off "Mobile Networks."
  • Go to "Settings" on the device > Switch on/off "Wi-Fi."

Note: The sound quality depends on the performances of communication line and device both parties use.


<SkyPhone User Support Summer Holiday Closing>

The SkyPhone User Support will be closed during the following time.

Holiday Closing Time: From Saturday, August 8, 2020 To Sunday, August 16, 2020 (JST)
Unavailable Services: User support services (including our responses to your inquiries)

Please note that you'll be responded on August 17 (JST) or later if you contact us after 1:00 PM on August 7 (JST).
You can continue using SkyPhone as usual while our user support services are unavailable.

Thank you for your understanding and cooperation.

If you need our support, click here to contact us.

SkyPhone User Support

Contact Form

Business hours to reply to your message: Monday to Friday 10:00 AM to 5:00 PM (JST), except for national holidays