diff --git a/src/room/GroupCallView.tsx b/src/room/GroupCallView.tsx
index 64c3e96..87b6795 100644
--- a/src/room/GroupCallView.tsx
+++ b/src/room/GroupCallView.tsx
@@ -36,6 +36,7 @@ import { UserChoices } from "../livekit/useLiveKit";
 import { findDeviceByName } from "../media-utils";
 import { OpenIDLoader } from "../livekit/OpenIDLoader";
 import { ActiveCall } from "./InCallView";
+import { Config } from "../config/Config";
 
 declare global {
   interface Window {
@@ -219,7 +220,9 @@ export function GroupCallView({
     undefined
   );
 
-  const livekitServiceURL = groupCall.foci[0]?.livekitServiceUrl;
+  const livekitServiceURL =
+    groupCall.foci[0]?.livekitServiceUrl ??
+    Config.get().livekit.livekit_service_url;
   if (!livekitServiceURL) {
     return <ErrorView error={new Error("No livekit_service_url defined")} />;
   }