AudioCodes Mediant 1000B User Manual page 185

User's Manual
Reason

Authentication
Failure


Dialog
Establishment 
Failure




Abnormal Flow

Version 7.2
Description
Local authentication ("Bad digest" errors)
Remote authentication (SIP 401/407 is sent if
original message includes authentication)
Classification failure
Routing failure
Other local rejects (prior to SIP 180 response)
Remote rejects (prior to SIP 180 response)
Malicious signature pattern detected
Requests and responses without a matching
transaction user (except ACK requests)
Requests and responses without a matching
transaction (except ACK requests)
185 Mediant 1000B Gateway & E-SBC
13. Security
Syslog String

malformed-header-
overflow

auth-establish-fail

auth-reject-response

establish-classify-fail

establish-route-fail

establish-local-reject

establish-remote-
reject

establish-malicious-
signature-db-reject

flow-no-match-tu

flow-no-match-
transaction