diff --git a/src/agent_gsm.py b/src/agent_gsm.py
index a7f95d3..db24856 100644
--- a/src/agent_gsm.py
+++ b/src/agent_gsm.py
@@ -92,38 +92,29 @@ def upload_results():
         # Path to audio
         path_audio = t[1]
 
-        utils.log(f'Found {path_report.name} and {path_audio.name} files.')
-        try:
-            with open(path_report, 'rt') as f:
-                report = json.loads(f.read())
-        except:
-            utils.log_error(f'Error when processing {path_report.name}')
-            continue
+        utils.log(f'Found {t} report pair.')
+        if path_report is not None and path_report.exists():
+            try:
+                with open(path_report, 'rt') as f:
+                    report = json.loads(f.read())
+            except:
+                utils.log_error(f'Error when processing {path_report.name}')
+                continue
 
-        upload_id, success = BACKEND.upload_report(report, cache=None) 
-        if success:
-            utils.log(f'Report {upload_id} is uploaded ok.')
+            upload_id, success = BACKEND.upload_report(report, cache=None) 
+            if success:
+                utils.log(f'Report {upload_id} is uploaded ok.')
             
-            # Rename files to make sync audio filename with reported ones
-            # path_report_fixed = CACHE.dir / f'{upload_id}.json'
-            # path_report = path_report.rename(path_report_fixed)
-
-            # path_audio_fixed = CACHE.dir / f'{upload_id}.wav'
-            # path_audio = path_audio.rename(path_audio_fixed)
-            if path_audio.exists():
-                utils.log(f'Uploading {path_audio.name} file...')
-                # Upload recorded audio
-                upload_result = BACKEND.upload_audio(upload_id, path_audio)
-                if upload_result:
-                    utils.log(f'  Recorded audio {upload_id}.wav is uploaded ok.')
-                os.remove(path_audio)
-            else:
-                utils.log(f'No recorded audio file found, skipping audio upload.')
             os.remove(path_report)
+
+        if path_audio is not None and path_audio.exists():
+            utils.log(f'Uploading {path_audio.name} file...')
+            # Upload recorded audio
+            upload_result = BACKEND.upload_audio(path_audio.stem, path_audio)
+            if upload_result:
+                utils.log(f'  Recorded audio {path_audio.stem}.wav is uploaded ok.')
+            os.remove(path_audio)
             
-        else:
-            utils.log(f'Failed to upload report {path_report.name}')
-            break
         
 def run_analyze(file_test: str, file_reference: str, number: str) -> bool:
     global CALL_COUNTER
@@ -147,8 +138,8 @@ def run_analyze(file_test: str, file_reference: str, number: str) -> bool:
         utils.log(f'Recorded audio call duration: {test_audio_length}s, reference audio length: {ref_audio_length}s')
         
         # Check if audio length is strange - skip such calls. Usually this is missed call.
-        is_caller_audio_big = is_caller and test_audio_length > ref_audio_length * 1.5
-        is_answerer_audio_big = is_answerer and test_audio_length > ref_audio_length * 1.5
+        is_caller_audio_big = is_caller and test_audio_length > ref_audio_length * 3
+        is_answerer_audio_big = is_answerer and test_audio_length > ref_audio_length * 3
 
         if is_caller_audio_big or is_answerer_audio_big:
             utils.log_error(f'Recorded call is too big - looks like mobile operator prompt, skipping analysis')
diff --git a/src/utils_cache.py b/src/utils_cache.py
index 2fbf9e5..a466838 100644
--- a/src/utils_cache.py
+++ b/src/utils_cache.py
@@ -80,11 +80,16 @@ class InfoCache:
         lst = os.listdir(self.dir)
         for n in lst:
             p = self.dir / n
-            if self.is_valid_uuid(p.stem) and n.endswith('.json'):
+            if self.is_valid_uuid(p.stem) and (n.endswith('.json') or n.endswith(".wav")):
                 # Probe found
+                p_json = p.with_suffix('.json')
                 p_audio = p.with_suffix('.wav')
-                if p_audio.exists():
-                    r.append((p, p.with_suffix('.wav')))
+                if p_json.exists() and p_audio.exists():
+                    r.append((p_json, p_audio))
+                elif p_json.exists():
+                    r.append((p_json, None))
+                elif p_audio.exists():
+                    r.append((None, p_audio))
         
         return r
 
diff --git a/src/utils_qualtest.py b/src/utils_qualtest.py
index 8680814..03fce30 100644
--- a/src/utils_qualtest.py
+++ b/src/utils_qualtest.py
@@ -58,6 +58,7 @@ TRACE_TOTAL_TIMEOUT = 30
 # a webpage is mostly I/O bound, it's not going to be significant.
 
 def trace_function(frame, event, arg):
+    global TRACE_START_TIME
     if time.time() - TRACE_START_TIME > TRACE_TOTAL_TIMEOUT:
         raise Exception('Timed out!') # Use whatever exception you consider appropriate.
 
@@ -114,6 +115,7 @@ class QualtestBackend:
         
 
     def upload_audio(self, probe_id, path_recorded: Path):
+        global TRACE_START_TIME
         result = False
 
         # Log about upload attempt