A telephone apparatus that can be connected to both an IP network and a public switched telephone network, the telephone apparatus includes: a microphone unit, a speaker unit, an operation unit that is operated by a user and a call control unit. The method is based on linearization of an analytical pulsed magnetization transfer mathematical model so that spatial distribution maps of the bound pool fraction and cross-relaxation rate constant can be obtained in a time-efficient manner by using only two experimental magnetization transfer images of the bio-logical object in which water and macromolecules are present. When not being used to apply or reduce tension, the flip up handle is pivoted to lie flush against a housing of the spool to provide a low profile. A coupler engages the actuator wheel when the governor wheel attains an actuation speed and thus couples with the governor wheel so that the actuator wheel is caused to rotate. The glass lithography mask preform is a longitudinal silicon oxyfluoride glass tube that has an OH content \u226610 ppm, a F wt. Primary areas of utility include manufacturing systems, city wide vehicle traffic control, multiple project scheduling, communications networks and economic systems.