One or more terminals that are coupled to a packet-based network are installed with a first instance andor a second instance of a communication client application of a first user. In the mobile communication system, a home zone signal generator generates a home zone signal, a mobile radio terminal receives the home zone signal and determines whether the mobile radio terminal is currently within or outside a home zone based on the strength of the home zone signal, and a base station communicates with the mobile radio terminal. A high percentage proportion of broadband active speech frames indicates that a broadband use is preferred on the part of the codec and therefore a need exists for synthesizing noise information in broadband form during a DTX phase. By also selecting an appropriate extrusion temperature profile, it is possible to eliminate or minimize unmelts, which can contribute to processing difficulties as well as defects in the resulting article. The amount of the electrolyte injected into the separator in the step is sufficient to impregnate the positive electrode and the separator and immerse a lower end of the cylindrical portion of the separator in the electrolyte remaining in the separator, thereby bringing the lower end of the cylindrical portion into contact with the upstanding portion.