diff --git a/services/asterisk_bridge_service/bridge_processing.py b/services/asterisk_bridge_service/bridge_processing.py
index 14d4b19..ca3a7ae 100644
--- a/services/asterisk_bridge_service/bridge_processing.py
+++ b/services/asterisk_bridge_service/bridge_processing.py
@@ -1233,7 +1233,7 @@ def process_recording_ready(
 
 
 _NO_ANSWER_DIAL_STATUSES = {"NOANSWER", "BUSY", "CANCEL", "CHANUNAVAIL", "CONGESTION"}
-_NO_ANSWER_HANGUP_CAUSES = {"17", "18", "19", "21", "34", "38"}
+_NO_ANSWER_HANGUP_CAUSES = {"1", "3", "17", "18", "19", "20", "21", "22", "34", "38"}
 
 
 def process_agent_dial_outcome(session, row: AsteriskEventLogRow, payload: dict[str, Any]) -> None: