Abstract: A mobile communications network and a mobile communication method for reducing loads to be incurred to the mobile communications network which loads occur because the user changes its mobile communication terminal. Mobile communication terminal numbers of mobile communication terminals (21), (22), IDs of users (31), (32) of the mobile communication terminals, and at least one address to be used by each user when the user performs a communication. The mobile communications network comprises an address/user corresponding table (13) having a table for bringing addresses to be used in each of the multiple communication methods and a user ID into corresponding relation. When a terminating request specifying an address is made, a user ID corresponding to the specified address is obtained using the address/user corresponding table.

Abstract: This invention provides a mobile communication system in which a call-incoming side can switch a communication line to an appropriate one which corresponds to a communication type requested by a transmitter's terminal. One example of its construction is as follows.A mobile station has a plurality of terminal units corresponding to plural types of communication and a call number is preliminarily assigned to each of them. A terminal unit in a telephone network uses a call number corresponding to a desired communication type when a datum is transmitted to the mobile station. The mobile station informs this call number to all of the terminal units which are connected to the mobile station. The respective terminal units inform the communication type to the mobile station only when the communication type corresponding to the call number can be handled. The mobile station informs this communication type contained in a reception call receiving signal to a mobile communication exchange.

Abstract: An exhaust system for use with a high temperature furnace used to perform oxidation and/or annealing operations of the type used in semiconductor fabrication. The exhaust system is designed to permit the furnace to be used with a controlled environment chamber surrounding the entry to the process chamber of the furnace. The exhaust system allows a relatively high velocity flow of exhaust gas from the process chamber through the exhaust system to occur when a positive pressure (e.g., annealing) operations are performed. Such high velocity flow prevents (a) backstreaming and (b) the accumulation of non-uniform concentrations of exhaust gases in the exhaust system, thereby permitting the accurate monitoring of the concentration of a selected gas in the exhaust system. Based on such monitoring, the opening of the door to the process chamber of the furnace may be prevented when the concentration of the selected gas exceeds a predetermined level.