diff --git a/static/usage.html b/static/usage.html
index 466a8147..dd094c4d 100644
--- a/static/usage.html
+++ b/static/usage.html
@@ -475,12 +475,13 @@
                 <h2><a href="#lte-only-mode">LTE-only mode</a></h2>
 
                 <p>If you have a reliable LTE connection from your carrier, you can reduce attack
-                surface by disabling 2G / 3G connectivity in Settings ➔ Network &amp; Internet ➔ Mobile
-                network ➔ Preferred network type. Traditional voice calls will only work in the LTE-only
-                mode if you have either an LTE connection and VoLTE (Voice over LTE) support or a Wi-Fi
-                connection and VoWi-Fi (Voice over Wi-Fi) support. Currently, VoLTE / VoWi-Fi works on
-                GrapheneOS but not on most carriers, since the configuration and extra apps for them on
-                most carriers are not yet around.</p>
+                surface by disabling 2G / 3G connectivity in Settings ➔ Network &amp; Internet ➔
+                Mobile network ➔ Preferred network type. Traditional voice calls will only work in
+                the LTE-only mode if you have either an LTE connection and VoLTE (Voice over LTE)
+                support or a Wi-Fi connection and VoWi-Fi (Voice over Wi-Fi) support. VoLTE /
+                VoWi-Fi works on GrapheneOS for most carriers unless they restrict it to carrier
+                phones. US carriers other than T-Mobile tend to be missing these features due to
+                us not including their proprietary apps.</p>
 
                 <p>This feature is not intended to improve the confidentiality of traditional calls and
                 texts, but it might somewhat raise the bar for some forms of interception. It's not a