A medical apparatus for a patient, comprising: an implantable system, wherein the implantable system comprises an implantable device comprising: at least one implantable functional element configured to deliver stimulation energy comprising a stimulation waveform having waveform parameters to tissue of the patient; and an implantable controller configured to provide the stimulation waveform to the at least one implantable functional element, wherein the stimulation waveform comprises bursts of trains of pulses, wherein each train is a series of pulses and each burst is series of trains, each train has a train-on period from a beginning of a first pulse to an end of a last pulse of that train, there is a train-off quiescent period between an end of one train and a beginning of a next train, each burst has a burst-on period from a beginning of a first pulse of a first train to an end of a last pulse of a last train of that burst, and there is a burst-off quiescent period between an end of one burst and a beginning of the next burst, wherein the waveform parameters include the train-on period, the train-off quiescent period, the burst-on period, and the burst-off quiescent period, and wherein the waveform parameters are set to effect treatment of pain of the patient. an implantable system, wherein the implantable system comprises an implantable device comprising: at least one implantable functional element configured to deliver stimulation energy comprising a stimulation waveform having waveform parameters to tissue of the patient; and an implantable controller configured to provide the stimulation waveform to the at least one implantable functional element, wherein the stimulation waveform comprises bursts of trains of pulses, wherein each train is a series of pulses and each burst is series of trains, each train has a train-on period from a beginning of a first pulse to an end of a last pulse of that train, there is a train-off quiescent period between an end of one train and a beginning of a next train, each burst has a burst-on period from a beginning of a first pulse of a first train to an end of a last pulse of a last train of that burst, and there is a burst-off quiescent period between an end of one burst and a beginning of the next burst, wherein the waveform parameters include the train-on period, the train-off quiescent period, the burst-on period, and the burst-off quiescent period, and wherein the waveform parameters are set to effect treatment of pain of the patient. at least one implantable functional element configured to deliver stimulation energy comprising a stimulation waveform having waveform parameters to tissue of the patient; and an implantable controller configured to provide the stimulation waveform to the at least one implantable functional element, wherein the stimulation waveform comprises bursts of trains of pulses, wherein each train is a series of pulses and each burst is series of trains, each train has a train-on period from a beginning of a first pulse to an end of a last pulse of that train, there is a train-off quiescent period between an end of one train and a beginning of a next train, each burst has a burst-on period from a beginning of a first pulse of a first train to an end of a last pulse of a last train of that burst, and there is a burst-off quiescent period between an end of one burst and a beginning of the next burst, wherein the waveform parameters include the train-on period, the train-off quiescent period, the burst-on period, and the burst-off quiescent period, and wherein the waveform parameters are set to effect treatment of pain of the patient.