12. A device for controlling operation of an operational line in a DSL system, the device comprising: means for collecting operational data from the operational line; means coupled to the collecting means for analyzing the collected operational data, the analyzing means further comprising: means for estimating the observation probability, the state-transition probability matrix, and the initial state distribution of a Hidden Markov Model (HMM) based on the collected update operational data; means for estimating a likelihood of at least one state of the HMM based on the collected update operational data; means for controlling operation of the operational line based on: the collected operational data; and the HMM modeling the internal states of the DSL system, the states characterizing at least one of data activity, impulse noise, crosstalk, noise margin, maximum attainable data rate or bit distributions.
12. A device for controlling operation of an operational line in a DSL system, the device comprising: means for collecting operational data from the operational line; means coupled to the collecting means for analyzing the collected operational data, the analyzing means further comprising: means for estimating the observation probability, the state-transition probability matrix, and the initial state distribution of a Hidden Markov Model (HMM) based on the collected update operational data; means for estimating a likelihood of at least one state of the HMM based on the collected update operational data; means for controlling operation of the operational line based on: the collected operational data; and the HMM modeling the internal states of the DSL system, the states characterizing at least one of data activity, impulse noise, crosstalk, noise margin, maximum attainable data rate or bit distributions. 15. The device of claim 12 wherein the device updates the HMM as necessary based on the collected operational data.