Hiroshi Uranaka

Data recording system for storing as data the contents of telephone calls made by internal telephones and by mobile telephones having memory card data storage function

Paging receiver which performs data communication protocol analysis through execution of control program

Mail arrival notifying system and mail delivery apparatus

Telephone speech control system, intermediate processing device, and exchange

Arrived mail informing system and mail distribution device

Communication terminal, server device, and mail delivery notification system

Exchange system and communication recording method

Data recording system for storing the contents of telephone calls made by internal and mobile telephones having memory card data storage function

Communication terminal, server unit, mail incoming notification method and system, and mail sending and receiving method

Voice storage system, exchanger and voice storage apparatus