Patent ID: 7043008

Claim:
A monitoring and recording system, said system comprising: a speech analyzer, said speech analyzer monitoring a signal characteristic of a conversation between a first caller and a second caller, the signal characteristic comprising at least one of a signal frequency and a signal amplitude; a recording device, said recording device recording said conversation; a controller, said controller determining whether a parameter of said conversation exceeds a threshold by: during an initial period of said conversation, determining a base value from the monitored signal characteristic, the base value representing a typical value for the monitored signal characteristic for said conversation, the base value defining a threshold range; after the initial period of said conversation, establishing whether a subsequent value for the signal characteristic is outside of the threshold range; and determining that the parameter of the conversation exceeds the threshold if the subsequent value for the signal characteristic is outside of the threshold range; and a storage device, said storage device storing said conversation during said conversation and retaining said stored conversation after termination of said conversation if said parameter of said conversation exceeds said threshold.