diff --git a/src/lib/auth.ts b/src/lib/auth.ts
index d560ff9..032a3e4 100644
--- a/src/lib/auth.ts
+++ b/src/lib/auth.ts
@@ -84,6 +84,12 @@ export default async function auth({
       case "authenticated":
         if (!onIndicator) break;
         msg.params.indicators.forEach(onIndicator);
+        if (!onVoiceJoin) break;
+        Object.entries(msg.params.voice_chat).forEach(([channelId, users]) =>
+          Object.entries(users).forEach(([userId, voiceId]) =>
+            onVoiceJoin(userId, channelId, voiceId)
+          )
+        );
         break;
 
       case "message_create":
diff --git a/src/types/protocol.ts b/src/types/protocol.ts
index 577d99c..c06529b 100644
--- a/src/types/protocol.ts
+++ b/src/types/protocol.ts
@@ -25,7 +25,14 @@ export type ClientMessage =
   | EnumType<"leave_voice", { channel_id: string }>;
 
 export type ServerMessage =
-  | EnumType<"authenticated", { uuid: string; indicators: IndicatorContext[] }>
+  | EnumType<
+      "authenticated",
+      {
+        uuid: string;
+        indicators: IndicatorContext[];
+        voice_chat: Record<string, Record<string, number>>;
+      }
+    >
   | EnumType<"temp_message", { message: string }>
   | EnumType<"message_create", Message>
   | EnumType<"message_update", { message_id: number; contents: string }>