Pigment based inks are provided. The hand-jotted information is any information marked on the jotting surface as a result of writing, jotting, drawing, sketching or in any other manner of marking or depositing marks on the jotting surface. The rotating outer surface of the centrifuge is provided, with turbulence-generating means, preferably torus-shaped turbulence-generating rollers, arranged inside the drier housing. The control circuit is coupled to the lighting circuit and the light sensor and has a delayed operation mode in which a first activation of the input device illuminates the display without performing any other operation of the device and a second activation of the input device performs an operation of the device other than illuminating the display. Once the additional verification had detected false tones the call can be process as if a connection occurred including routing such calls to an available agent or other handling process customized to handle such calls.