diff --git a/src/agent_gsm.py b/src/agent_gsm.py
index a7f95d3..c47ad35 100644
--- a/src/agent_gsm.py
+++ b/src/agent_gsm.py
@@ -147,8 +147,8 @@ 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')