DE3739330A1 - Wireless telephone call memory - Google Patents

Abstract

When a telephone is unattended due to absence, it is of interest to the telephone subscriber whether persons from a fixed circle of persons wanted to reach him by telephone. The solution presented here, which does not require to be licensed and is non-chargeable, enables such calls to be stored and remotely erased without cost since no call connection is established. The device is maintenance-free, inexpensive, without subsequent costs and can be installed by anybody. The wireless telephone call memory detects the ringing signals of the telephone by means of an in-built microphone and supplies them via an amplifier circuit to the tone detection circuit which renders the device insensitive to interference. In a further step, the ringing signals are forwarded to a time coordination circuit which ignores the ringing sequence of the first telephone call but counts and evaluates the ringing signals of a new call made immediately thereafter. The subsequent memory block ensures that the calls are stored or erased and visually indicated via LED. The above-mentioned erasure of the memory is achieved by repeating the storage process. Example: first call reveals "subscriber absent". Second call following immediately after the first one, 4 rings result in LED No. 4 being lit. After the operator returns, this informs him that the person with whom ringing code "4" has been agreed wishes to be called back.

Description

Category of the subject of the application

The invention relates to a wireless telephone call memory according to the Generic term.

Information on the genus

The DTAS is designed to make up to 8 different phone calls from one beforehand defined group of people with the bell code have been agreed, save and the operator who is absent during the calls when they return using Light-emitting diodes signal that he is from people from the aforementioned people Kreis was called and asked to call back. The DTAS works by wire going on and is therefore free of charge.

State of the art

It is known that for receiving, answering and storing a outgoing telephone calls "automatic answering machine" can be used. These answering machines will be used after approval by the Deutsche Bun despost galvanically connected to the telephone network and are therefore charged obligatory.

Criticism of the state of the art

The well-known "automatic answering machine" must be galvanically connected to the Telephone network. This means that the connection of one authorized specialist. The operation is approved and chargeable. When you receive a call, the "automatic answering machine" answers worter ", what the known cost of call units for the caller has the consequence. In addition, the caller must read the announcement text of the device wait before he can put a message on tape himself. This like This means that there are additional call costs for a subscriber calling remotely result. The purchase price and the follow-up costs are a lot times that of the DTAS. In addition, the caller can do this once announcements are no longer deleted.

task

The invention is based on the object of providing a wireless, for loading DTAS is available free of charge for the driver and free of charge for the caller to be provided by the operator himself without prior technical knowledge in can be installed and operated without a permit. The acquisition price sll cheap and the device therefore affordable for everyone. The caller should be able, should a callback not be necessary, delete his saved call.

solution

This object is achieved in that the DTAS, consisting of a Connector housing made of plastic, a conductor located in it track board, which also serves as a component carrier, is visible from the outside Light-emitting diodes that serve as visual display units and one built-in microphone, just close to the telephone at home is plugged into a socket of the power grid and is thus able to if the phone is unoccupied, this is compatible with the calling person The ten ringtone codes to save the calls and display them optically via LEDs. The operator is informed of the call when he returns and to return call requested. The caller is able should get a feedback call unnecessary by repeating the storage process call again to delete.

Achievable benefits

Since the device is simply plugged into the socket of the Is plugged into the power grid, the operation is licensing and fees free, the installation by the operator himself without technical knowledge feasible at any time. The storage and deletion of his The call is free of charge for the caller as there is no call connection comes about. The DTAS is technically uncomplicated, maintenance-free and affordable for everyone due to the low price.

Claims (1)

Preamble wireless telephone call memory characteristic part characterized in that the wireless telephone call memory (referred to below as DTAS) from an existing plastic connector housing, a printed wiring board located therein which serves as an electronic component carrier, outwardly visible light as optical display diode are designed and a built-in microphone in the housing is made.