From e62ffa3a1d2336eb8499a0f55e651c3da89e701d Mon Sep 17 00:00:00 2001
From: Daniel Micay
MMS, RCS, SMS over LTE, VVM (Visual Voicemail), VoLTE (carrier-based calls - on 4G and higher) and VoWi-Fi are largely implemented by the OS via TCP/IP - rather than by the cellular layer itself. This means there will be connections - by the OS to carrier servers instead of being handled by cellular. There are - already some toggles to control this along with APN configuration but - GrapheneOS will be providing more ways to override carrier configuration in - the future.
+ on 4G and higher), VoNR (5G) and VoWi-Fi are largely implemented by the OS via + TCP/IP rather than by the cellular layer itself. This means there will be + connections by the OS to carrier servers instead of being handled by cellular. + GrapheneOS modifies carrier configuration so that toggles for disabling VoLTE, + VoNR and VoWi-Fi are always available. We plan to provide more toggles to + control these things in the future beyond making all the standard toggles + avialable.