diff --git a/src/bot/audioProcedure.ts b/src/bot/audioProcedure.ts
index 25faafd..d37459f 100644
--- a/src/bot/audioProcedure.ts
+++ b/src/bot/audioProcedure.ts
@@ -94,21 +94,48 @@ export class AudioProcedure {
         const ttsTrack = streamDest.stream.getAudioTracks()?.[0];
         if (!ttsTrack) return { replaced: 0, pcs: pcs?.length || 0, reason: 'no-tts-track' };
 
+        // #region agent log
+        const diag: Record<string, any> = {
+          ttsTrackId: ttsTrack.id,
+          ttsTrackEnabled: ttsTrack.enabled,
+          ttsTrackReadyState: ttsTrack.readyState,
+          ttsTrackMuted: ttsTrack.muted,
+          beforeSenderTrackIds: [] as string[],
+          afterSenderTrackIds: [] as string[],
+        };
+        // #endregion
+
         let replaced = 0;
         for (const pc of pcs) {
           try {
             const senders = pc.getSenders?.() || [];
             for (const sender of senders) {
               if (sender?.track?.kind === 'audio') {
+                // #region agent log
+                diag.beforeSenderTrackIds.push(sender.track.id);
+                // #endregion
                 await sender.replaceTrack(ttsTrack);
                 replaced++;
+                // #region agent log
+                const afterTrack = sender.track;
+                diag.afterSenderTrackIds.push(afterTrack?.id || 'null');
+                diag.afterSenderTrackEnabled = afterTrack?.enabled;
+                diag.afterSenderTrackReadyState = afterTrack?.readyState;
+                // Force track enabled just in case
+                if (afterTrack && !afterTrack.enabled) {
+                  afterTrack.enabled = true;
+                  diag.forcedEnabled = true;
+                }
+                // #endregion
               }
             }
-          } catch {
-            // ignore per peer connection
+          } catch (err: any) {
+            // #region agent log
+            diag.error = String(err?.message || err);
+            // #endregion
           }
         }
-        return { replaced, pcs: pcs?.length || 0, reason: 'ok' };
+        return { replaced, pcs: pcs?.length || 0, reason: 'ok', diag };
       };
     });
 
@@ -241,9 +268,33 @@ export class AudioProcedure {
         }
         return { replaced: 0, pcs: 0, reason: 'force-function-missing' };
       });
+      // #region agent log
+      const diag = senderInjectInfo?.diag || {};
       this._logger.info(
-        `TTS sender injection: replaced=${senderInjectInfo?.replaced ?? 0}, pcs=${senderInjectInfo?.pcs ?? 0}, reason=${senderInjectInfo?.reason || 'n/a'}`,
+        `TTS sender injection: replaced=${senderInjectInfo?.replaced ?? 0}, pcs=${senderInjectInfo?.pcs ?? 0}, reason=${senderInjectInfo?.reason || 'n/a'} ` +
+        `ttsTrack=${diag.ttsTrackId || 'n/a'}(enabled=${diag.ttsTrackEnabled},state=${diag.ttsTrackReadyState},muted=${diag.ttsTrackMuted}) ` +
+        `beforeSenders=[${(diag.beforeSenderTrackIds || []).join(',')}] afterSenders=[${(diag.afterSenderTrackIds || []).join(',')}] ` +
+        `afterEnabled=${diag.afterSenderTrackEnabled} afterState=${diag.afterSenderTrackReadyState} forcedEnabled=${diag.forcedEnabled || false}`,
       );
+      // #endregion
+
+      // Collect WebRTC stats BEFORE playback
+      // #region agent log
+      const statsBefore = await this._page.evaluate(async () => {
+        const pcs = ((window as any).__audioCapturePeerConnections || []) as RTCPeerConnection[];
+        let bytesSent = 0; let packetsSent = 0;
+        for (const pc of pcs) {
+          for (const s of (pc.getSenders?.() || [])) {
+            if (s?.track?.kind !== 'audio') continue;
+            try {
+              const stats = await s.getStats();
+              stats.forEach((r: any) => { if (r.type === 'outbound-rtp' && r.kind === 'audio') { bytesSent += Number(r.bytesSent || 0); packetsSent += Number(r.packetsSent || 0); } });
+            } catch {}
+          }
+        }
+        return { bytesSent, packetsSent };
+      });
+      // #endregion
 
       await this._page.evaluate(async ({ audioData, format }) => {
         const ctx = (window as any).__ttsAudioContext as AudioContext;
@@ -293,6 +344,38 @@ export class AudioProcedure {
         });
       }, { audioData, format });
 
+      // Collect WebRTC stats AFTER playback
+      // #region agent log
+      const statsAfter = await this._page.evaluate(async () => {
+        const pcs = ((window as any).__audioCapturePeerConnections || []) as RTCPeerConnection[];
+        let bytesSent = 0; let packetsSent = 0;
+        for (const pc of pcs) {
+          for (const s of (pc.getSenders?.() || [])) {
+            if (s?.track?.kind !== 'audio') continue;
+            try {
+              const stats = await s.getStats();
+              stats.forEach((r: any) => { if (r.type === 'outbound-rtp' && r.kind === 'audio') { bytesSent += Number(r.bytesSent || 0); packetsSent += Number(r.packetsSent || 0); } });
+            } catch {}
+          }
+        }
+        // Also check current sender track state
+        const senderInfo: any[] = [];
+        for (const pc of pcs) {
+          for (const s of (pc.getSenders?.() || [])) {
+            if (s?.track?.kind !== 'audio') continue;
+            senderInfo.push({ id: s.track.id, enabled: s.track.enabled, readyState: s.track.readyState, muted: s.track.muted });
+          }
+        }
+        return { bytesSent, packetsSent, senderInfo };
+      });
+      this._logger.info(
+        `[Voice] WebRTC stats: before(bytes=${statsBefore.bytesSent},pkts=${statsBefore.packetsSent}) ` +
+        `after(bytes=${statsAfter.bytesSent},pkts=${statsAfter.packetsSent}) ` +
+        `delta(bytes=${statsAfter.bytesSent - statsBefore.bytesSent},pkts=${statsAfter.packetsSent - statsBefore.packetsSent}) ` +
+        `senders=${JSON.stringify(statsAfter.senderInfo)}`,
+      );
+      // #endregion
+
       this._logger.info('Audio playback completed');
     } catch (error) {
       this._logger.error('Error playing audio:', error);
diff --git a/src/bot/orchestrator.ts b/src/bot/orchestrator.ts
index 39bca99..28dc1ae 100644
--- a/src/bot/orchestrator.ts
+++ b/src/bot/orchestrator.ts
@@ -520,11 +520,14 @@ export class BotOrchestrator {
           checked,
           dataCid: el.getAttribute('data-cid') || '',
           title: el.getAttribute('title') || '',
+          ariaLabel: el.getAttribute('aria-label') || '',
           tagName: el.tagName,
           looksMuted,
         };
       });
-      this._logger.info(`Mic state: checked=${state.checked}, data-cid="${state.dataCid}", tag=${state.tagName}, looksMuted=${state.looksMuted}`);
+      // #region agent log
+      this._logger.info(`Mic state: checked=${state.checked}, data-cid="${state.dataCid}", tag=${state.tagName}, looksMuted=${state.looksMuted}, ariaLabel="${state.ariaLabel}", title="${state.title}"`);
+      // #endregion
 
       const needsClick = state.tagName === 'INPUT'
         ? !state.checked