pppconfig and multiple AT commands for modem initialization

[David Karlin <dkarlin@coloradomtn.edu>]

Hello,
I'm trying to get my modem to dial more quietly.  I looked up the command
and it seems like ATL0 is what I want.

I've tried various combinations of ATZ and ATL0 like:
"ATZL0", "ATZ,L0", "ATZ\nATL0", "ATZ\n\p\p\p\p\p\pATL0", and more, but
none seems to work.  The modem dials as loudly as ever.

BTW, this is a Diamond Supra Express (internal) and seems to work fine
in all other respects.

What is  the proper way to concatenate two AT commands into one
initialization string?

TIA.
-- 
David Karlin
mailto:dkarlin@coloradomtn.edu
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