About internet calls
With the internet call service (network service), you can make and receive calls over the
internet. Internet calls can be established between computers, between mobile phones,
and between a VoIP device and a traditional telephone.
To be able to use the service, you must subscribe to the service, and have a user account.
To make or receive an internet call, you must be in the service area of a wireless LAN,
and connected to an internet call service.