Abstract: Method and apparatus for providing a mobile terminal with an indication of the service subscription being used by the mobile terminal. When received at a mobile terminal, the indications are displayed upon a display element. The display of the indication of the selected service subscription minimizes uncertainty to a user of the mobile terminal as to which service subscription calls originated at, or terminated at, the mobile terminal are being charged.

Abstract: A telecommunication system is architecturally sub-divided into the concepts of user, subscription and terminal. A database within a cellular radio telecommunication system is provided with separate and independent storage registers for storing information relating to each of user, subscription and terminal. An user register is provided for user information, a terminal register is provided for terminal information and a subscription register is provided for subscription information. The use of three separate registers within the system allow several terminals to be associated with one user, several users to be associated with one terminal, several subscriptions to be associated with one user, and several users to be selectively associated with one subscription.

Abstract: An apparatus for chlorinating swimming bath water, includes an electrochemical cell (2) with an anolyte chamber (25) and a catholyte chamber (22), which are separated by an ion-selective diaphragm (290), a metering device (7) for supplying consumption hydrochloric acid to the cell (2), a chlorine gas outlet from the upper space (26) of the anolyte chamber (25), a chlorine gas pipe (29) for transferring chlorine gas from the cell (2), to a circulation pipe (15) for the bath water, an ejector (10) connecting the chlorine gas pipe (29) to the bath water pipe (15). The ejector (10) is adapted to generate a pressure in the chlorine gas pipe (29) which is lower than atmospheric pressure, and a gas flow in the gas pipe (29) which is greater than the greatest chlorine gas production flow of the cell (2). An atmospheric air pipe (35,45) communicates with the chlorine gas pipe (29). A liquid trap device (3) is arranged in the air pipe.