A mobile phone including a number keypad for entering the symbols 0-9, # and *, the keypad including at most five keys at least one of which corresponds to a list of at least two symbols, wherein the nth symbol in the list corresponding to a key is accessed by tapping on the key n times, with cycling from the end of the list back to the beginning of the list. A fault detection, fault isolation, and load restoration component, a voltagevar control component, andor other components may be provided with access to the electrical network model so that the components may have access to relatively up-to-date andor accurate information describing the electrical network when executing functionality for the electrical network. The first valve is on the tube-syringe’s side and is a tire valve including an inner needle covered by a tire.