I am using Syniverse SMS gateway to send a notification to users through SMS. On Searching I came across error codes like
404 - ACCOUNT OR USER DOES NOT EXIST 500 - ERROR 502 - PIN IN DO NOT CALL DATABASE 503 - INSUFFICIENT BALANCE 504 - DATABASE ERROR
which are returned by the SMS gateway in general incase of failure. But I want to know what are the error codes that are supported by the Syniverse gateway. Also it would be really helpful if you can share the error handling mechanism in Syniverse gateway.