Hello Bj”rn.

18 Apr 06 13:14, you wrote to David Drummond:

 DD>> Why do you think a fax machine would default to 0 any more that
 DD>> any other digit?

 BF>    All fax machines I've worked with stored numbers as packed BCD.
 BF> Admittedly this was 20 odd years ago, when non-volatile memory still
 BF> was extremely expensive,

Twenty years ago, extreme limitations were imposed on automatic diallers.
Such as that they should not retry more than three times, etc, ect. If it
didn't pass the strict tests, it didn't get the blue sticker of approval
and was not allowed to appear on the market. (And didn't). Not long before
that, they were simply forbidden. Period. The first fidonet nodes here that
dialled out automatically were illegal.

 BF>  but then again many fax machines are now
 BF> rather old since it's a dying technology.

 DD>> In this country null != 0

 BF>    In this country null = 00 when stored as packed BCD. :)

When I designed stuff like that twenty years ago, I made it reset to
something invalid like FF in case of a crash. And of course use that as an
indicator to not attempt to dial....

Michiel

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