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Telephone Call Logger

It logs all outgoing calls and can download the data via your PC's serial port to an Excel spreadsheet.

Design by Frank Crivelli - Article by Peter Crowcroft

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Please Note
This is NOT an Austel-approved device. Anyone building this kit should make appropriate enquiries to ensure they are not contravening telecommunications legislation. Also, the use of telephone number and duration recording devices may contravene privacy legislation in some areas.

Most phone bills itemise long distance calls and give de-tails of the number dialled. But local calls are just totalled up – you have no way of knowing who those calls were made to, or when they were made, or for how long.

Click for larger image
The logger is housed in a small plastic case and is fully self-contained. It does not need to be connected to a PC until you want to download the data which is stored in EEPROMs.

What about small businesses that operate from home? They can usually claim a percentage of phone calls as a deduction for income tax purposes.

With the call logger, ALL outgoing call details are recorded and it is simply a matter of sorting them to determine how many were business calls.

You don’t have to do a thing: all the data is recorded automatically. And all phones that use DTMF tone dialing are supported.

The logger records the start and stop time of outgoing calls along with the number dialled (plus any other digits pressed during the call – for example, BPay and credit card number entry). It operates "stand alone" – there is no need for any connection to a PC until you want to use the data.

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