A network monitoring system is provided that includes a processor, a memory coupled to the processor and a database that includes session data of one or more transactions in a multiprotocol wireless communication system. The network monitoring system further includes a rule engine configured and operable to store rules associated with at least one rule set. The network monitoring system also includes an analysis engine configured to identify a root cause of a failure for one or more of the transactions based on at least one rule in the rule set.