fix

desktop/app.js

@@ -1003,6 +1003,29 @@ function ensurePeerConnection(peerId) {
     }));
   };
 
+  pc.oniceconnectionstatechange = async () => {
+    const iceState = pc.iceConnectionState;
+    console.debug(`voice ice state (${peerId}):`, iceState);
+    if (iceState !== "failed" || pc.restartingIce) return;
+    pc.restartingIce = true;
+    try {
+      const offer = await pc.createOffer({ iceRestart: true });
+      await pc.setLocalDescription(offer);
+      if (state.voice.ws && state.voice.ws.readyState === WebSocket.OPEN) {
+        state.voice.ws.send(JSON.stringify({
+          type: "signal",
+          to_user_id: peerId,
+          kind: "offer",
+          data: pc.localDescription,
+        }));
+      }
+    } catch (err) {
+      console.warn("ICE restart failed", err);
+    } finally {
+      pc.restartingIce = false;
+    }
+  };
+
   pc.ontrack = (event) => {
     const stream = event.streams[0];
     if (event.track.kind === "audio") {
@@ -1014,7 +1037,20 @@ function ensurePeerConnection(peerId) {
         audio.playsInline = true;
         document.body.appendChild(audio);
       }
-      audio.srcObject = stream;
+      audio.muted = false;
+      audio.volume = 1;
+      audio.srcObject = new MediaStream([event.track]);
+      const tryPlay = () => {
+        const playPromise = audio.play();
+        if (playPromise && typeof playPromise.catch === "function") {
+          playPromise.catch((err) => {
+            console.warn(`remote audio playback blocked for ${peerId}`, err);
+          });
+        }
+      };
+      audio.onloadedmetadata = tryPlay;
+      audio.oncanplay = tryPlay;
+      tryPlay();
     } else if (event.track.kind === "video") {
       const peer = state.members.find(m => m.id === peerId) || { display_name: "Unknown" };
       renderVideo(peerId, peer.display_name, stream, event.track.id);