Rustu Kaya kindly quoted part of his CV
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Rob Klein hangs his head in shame and mumbles: "Sorry Rustu"
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Rustu Kaya wrote:
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Have you ever tried this? How was the read tape? I still insist in not to take such a challange if you dont have commertial plans for the rig you developed.

Rob Klein responds:
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Yes, I have. Some years ago, when type approval was still mandatory in The Netherlands, I was responsible for the design of several devices with a telephone line interface. The red tape wasn't so bad, but the cost of type approval was (almost 10.000 Guilders, some 4500 US$). Luckily, today type approval is no longer mandatory. It is still mandatory to comply with the regulations, though.


Rustu Kaya wrote:
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A question of mine to you, what would you do if you are to make a circuit that have an interface to PSTN for an experimental purpose, would you try to take the approval of your TELCO? Is this as simple as to sent a mail from nearby Post Office. If Yes, you are in Paradise.

Rob Klein responds:
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No, I wouldn't. But I would make sure that my line interface compies with the applicable standards. This is achieved easily enough by using the MH88437 I mentioned in an earlier post.


Rustu Kaya wrote:
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But please dont run away with the idea that I am for doing any illegality, what I am just saying is 'use your circuits at your own risk'

Rob Klein responds:
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If you are indeed only using the circuit for yourself, that is an attitude you can get away with. My comments however were specifically aimed at commercial use. Again: if you are going to sell anything you must inform yourself of the legal demands that you have to reckon with. Conformance to standards is one of those, whether confirmed by type approval or self-certification.

Best regards,
Rob.