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Exclusively? You make it sound like VoLTE is mandatory. That is not the case, to my knowledge. On a 4G network, for example, one does not always have VoLTE avai
by ngneer 2y ago
Exclusively? You make it sound like VoLTE is mandatory. That is not the case, to my knowledge. On a 4G network, for example, one does not always have VoLTE available, and yet one is always able to place voice calls. Since your conviction is palpable, if you could please provide a reference then that would help further the discussion. If not, then no worries, will find the information on my own.
- lxgr 2y ago> 4G and Evolved Packet Core (EPC) architectures do not include support for circuit-switched voice and video calls. Two tracks are available that provide interoperable voice services on 4G smartphones: Circuit-Switched Fallback (CSFB) and VoLTE. (from https://www.ericsson.com/en/reports-and-papers/white-papers/voice-and-communication-services-in-4g-and-5g-networks https://www.ericsson.com/en/reports-and-papers/white-papers/...) Circuit switched fallback means falling back to 3G or 2G (or maybe CDMA) for voice calls; if such networks are no longer available in a given area, VoLTE is indeed mandatory if voice calls are to be supported. (Which is often mandated by regulations, so networks sometimes even block non-VoLTE UEs from attaching.)
- inemesitaffia 2y agoSucks on my phone though I've turned it off.