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echo: usr_modems
to: Paul Edwards
from: David Drummond
date: 1996-05-12 09:56:48
subject: Init String

Paul, at 18:52 on May 11 1996, you wrote to David Drummond ...

DD>>> AT&F1&W

PE>> I hope you don't really have that as your init string.  &W 
PE>> means write to NVRAM.  I believe you can only write to 
PE>> NVRAM a few thousand times before the NVRAM becomes dodgy.  
PE>> You want to do something like the above ONCE, and then ATZ 
PE>> from then on.

DD>> I initialised my modem with AT&F1&W - I reset my modem with 
DD>> ATZ

PE> "I set up my modem with AT&F1&W - I use ATZ as my 
PE> initialization string".

Initialise - from "initial", meaning first.  ATZ resets a USR
modem to it's stored settings, it says so in the documentation

DD>> Both of these commands have been/are issued at the SAME 
DD>> port speed.

PE> Yeah, good idea.  It avoids the problem of the USR not doing
PE> auto-baud-detect on ATZ like every other modem in the world.

The USR also does HST unlike every other modem in the world.  It is unique,
it's ATZ command behaves EXACTLY as documented, unlike every other modem in
the world.

David
@EOT:

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