(-) required (+) optional Invalid Account ID (-) Local address family/IP address/port/transport (-) Remote address family/IP address/port/transport (-) Service (SIP, AMI, IAX2, ...) (-) System Name (+) Module (+) Account ID (username, etc) (+) Session ID (CallID, etc) (+) Session timestamp (required if Session ID present) (-) Event timestamp (sub-second precision) Failed ACL match -> everything from invalid account ID (+) Name of ACL (when we have named ACLs) Invalid Challenge/Response -> everything from invalid account ID (-) Challenge (-) Response (-) Expected Response Invalid Password -> everything from invalid account ID Successful Authentication -> informational event -> everything from invalid account ID Invalid formatting of Request -> everything from invalid account ID -> account ID optional (-) Request Type (+) Request parameters Session Limit Reached (such as a call limit) -> everything from invalid account ID Memory Limit Reached -> everything from invalid account ID Maximum Load Average Reached -> everything from invalid account ID Request Not Allowed -> everything from invalid account ID (-) Request Type (+) Request parameters Request Not Supported -> everything from invalid account ID (-) Request Type Authentication Method Not Allowed -> everything from invalid account ID (-) Authentication Method attempted In dialog message from unexpected host -> everything from invalid account ID (-) expected host