On 31-Mar-98 14:32:39 in USR_MODEMS did Gene Lowry write to Robin Iwamoto 
about V.90 Upgrade:
>Each SDL for the Courier is a complete, self contained package.  No SDL to 
>date requires that any other specific SDL has been loaded into the modem.   
You
>are at liberty to flash forward and back as you see fit (bearing in mind  
that
>the ROM has a limited number of writes).  As for x2, once it's enabled,  it
Do you know how many writes the FlashROM in the Courier series is guaranteed
for?
Another question that have been on my mind for quite some time now. The non-
volatile memory that stores the settings written by the AT&W command isn't 
part
of the same FlashROM that stores the DSP and Supervisor code? Ie can you, by
using AT&W indiscriminately, make your Courier unable to accept new SDL 
les?
/Mats-Olov Rustad
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