Update sample_utils/turn.py

sample_utils/turn.py

@@ -18,8 +18,8 @@ def get_ice_servers():
 
     # Ref: https://www.twilio.com/docs/stun-turn/api
     try:
-        account_sid = "ACb808f2be7a436da0f5620ea4740d6c5c"
-        auth_token = "096f07f2fe9dac37e2701ca6da7bfa8d"
+        account_sid = os.environ["TWILIO_ACCOUNT_SID"]
+        auth_token = os.environ["TWILIO_AUTH_TOKEN"]
     except KeyError:
         logger.warning(
             "Twilio credentials are not set. Fallback to a free STUN server from Google."  # noqa: E501