From 7bf8b04705bdcd4ea22aad3d0d6728f483d83ae0 Mon Sep 17 00:00:00 2001
From: Daniel Micay
MMS, RCS, SMS over LTE, VoLTE 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.
+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.