You can keep talking, although the connection is interrupted when switching networks.
Note: It depends on OS.
[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 Period: Tuesday, June 23, 2026, 9:00 am – 12:00 noon (JST)