Znalezione w sieci (w kontekście włączonej/wyłączonej transmisji danych):
Yes you can use VoLTE or Voice over LTE without your phone's data service switched on.
Both VoLTE and data services use LTE to access IP networks but the trick is each service has it's own APN or Access Point Name. Normally VoLTE uses the APN=IMS and data uses the APN=INTERNET or something special If you use your phone to access certain corporate or third party networks.
If you know about IP networking what this really means is that the phone has independent IP addresses for each APN and hence accesses independent IP sub domains. Furthermore the phone's OS only presents a socket interface to applications using the data APN while the IMS APN is hidden within the Operating System.
So when you switch off data all you are really doing is switching off the data APN while the parallel IMS APN stays up.
Z ViLTE może być tak samo.
