Data Action failure on BYOC trunk metadata extraction

Trying to get our configuration set up for a Data Action to parse SIP headers from our 15 APAC BYOC trunks. The custom script throws a null pointer exception when accessing the carrier_name field during high-volume failover events.

Error: java.lang.NullPointerException at com.genesys.dataaction.CarrierParser.extract(CarrierParser.java:42)