Net calls
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Your device supports voice calls over the internet (net
calls). Your device attempts emergency calls primarily over
cellular networks. If an emergency call using cellular
networks is not successful, your device attempts an
emergency call through your net call provider. Due to the
established nature of cellular telephony, you should use
cellular networks for emergency calls, if possible. If you
have cellular network coverage available, make sure that
your cellular phone is switched on and ready to make calls
before you attempt an emergency call. The capability for
an emergency call using internet telephony depends on
the availability of a WLAN and your net call provider's
implementation of emergency call capabilities. Contact
your net call provider to check the internet telephony
emergency call capability.
With the net call service (network service), you can make
and receive calls over the internet using the VoIP (voice
over internet protocol) technology. Net calls can be
established between computers, between mobile phones,
and between a VoIP device and a traditional telephone. To
make or receive a net call, your device must be within
WLAN coverage, for example. The availability of the net call
service may vary according to your country or area.