Comment by strcat

GrapheneOS recently added official support for forcing the availability of VoLTE, VoNR, 5G and/or VoWiFi with any carrier providing proper implementations. It was previously possible via ADB but no longer is since the December 2025 security patches which are included in our current security preview releases with the November 2025, December 2025 and January 2026 patches (https://discuss.grapheneos.org/d/27068-grapheneos-security-p...).

The devices with our OEM partner will be Snapdragon flagships with Gunyah rather than pKVM. It should still be able to support the same things. It even has official Windows guest support upstream.