Patent ID: 7990559

Claim:
A method of analyzing a quality of a communication network for facsimile devices, the communication network comprising at least a first facsimile device communicating through a digital network and a second facsimile device communicating through an analog network, the method comprising: establishing a connection between the facsimile devices using the communication network; assessing a configuration of the connection between the facsimile devices, the assessing comprising comparing bits of a facsimile information field (FIF) of a digital identification signal (DIS) from the second facsimile device to corresponding bits of a facsimile information field (FIF) of a non-standard facilities (NSF) signal from the second facsimile device to identify any changes made to the bits of the FIF of the DIS signal by communicating through the communication network; identifying at least one problem in the connection between the facsimile devices, and generating a network diagnostic report of the at least one identified problem.