Automatic dialer for telephone numbers with portable module

Details Automatic dialer for telephone numbers with portable module Automatic dialer for telephone numbers with portable module

1982-08-24

1984-09-25

Schreyer, Stafford D.

H04M 1274

Patent

active

044737203

ABSTRACT:
An automatic dialer for telephone numbers comprises a control unit (100), a memory unit (200), a keyboard unit (300), a display unit (400), units for voltage feed (550) and regulation (500), units for amplification (600) and automatic regulation of signal level (700), a signal shaping unit (900) and a unit for connection with a telephone line (800). At least the memory unit (200) is housed in a removable portion that plugs into a fixed portion containing the other units. This memory unit contains identification information corresponding to a local telephone network; and a memory of the control unit contains identification information corresponding to the local telephone network to which this fixed portion is connected. The control unit comprises a comparator comparing the identification information of a fixed portion and of the removable portion which plugs into this fixed portion, and controls modifications of the operating program of the control unit as a function of the result of this comparison.

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