From 791f7f2eca5682d9f65f565159f88c030b1dd959 Mon Sep 17 00:00:00 2001 From: June Date: Fri, 25 Feb 2022 18:08:59 +0000 Subject: [PATCH] Add documentation on carrier functionality Signed-off-by: June Co-authored-by: flawedworld Co-authored-by: June --- static/usage.html | 48 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) diff --git a/static/usage.html b/static/usage.html index c1b6adcd..b8fa59f5 100644 --- a/static/usage.html +++ b/static/usage.html @@ -104,6 +104,7 @@
  • Banking apps
  • App link verification
    • +
  • Carrier functionality
    • @@ -1045,6 +1046,53 @@ developer documentation on app link verification.

    + +
    +

    Carrier functionality

    + +

    GrapheneOS aims to work with all carriers that are officially supported by Google + on the stock operating system on Pixel devices. Wi-Fi Calling, VoLTE, Visual Voicemail, + MMS, SMS, Calling and 5G (SA and NSA) all are supported, however some functionality may + not be usable due to Google not supporting carriers on the stock OS officially or + due to GrapheneOS not shipping proprietary apps required in order for this + functionality to work on some carriers. GrapheneOS extracts CarrierConfigs, APNs, + modem configurations, Visual Voicemail configurations and MMS configurations from the + stock operating system to ensure users get easy carrier support that "just works".

    + +

    Please note that in some regions, LTE is referred to as 4G.

    + +

    Generally Visual Voicemail, SMS, MMS, Calls and VoLTE will work fine on GrapheneOS + with officially supported carriers by Google. Wi-Fi calling may vary due to a reliance + on proprietary Google apps which GrapheneOS does not ship.

    + +

    If you are having problems sending or receiving SMS/MMS messages, we suggest that + you perform the following steps:

    + +
      +
    • Deregister your phone number from Apple iMessage
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    • Deregister your phone number from Google Chat Features
      • +
    • Deregister your phone number from your carrier's RCS service
      • +
    + +

    If you continue to have problems despite following the instructions above or you + have another carrier related issue, we suggest that you perform the following steps:

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    • Some carriers require you to explicitly opt in to use services such as Wi-Fi calling. + Consult your carrier's documentation on the process for this or contact them.
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    • Reset Mobile Network settings in Settings ➔ System ➔ Reset options ➔ Reset Wi-Fi, + mobile & Bluetooth and then reboot the device.
      • +
    • USA users only: You may need to request your carrier to enable CDMA-less mode if + you have issues.
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    • Follow your carrier's instructions for setting up APNs, this can be found in + Settings ➔ Network & Internet ➔ SIMs ➔ Access Point Names
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    • As a last resort you may need to ask your carrier for a replacement SIM card.
      • +
    + +

    GrapheneOS includes bypasses for carrier restrictions on APN editing, tethering via + USB, Ethernet, Bluetooth and Wi-Fi and the ability to disable 2G, actions which would not + have been possible on the stock operating system.

    +