we use USB with a NT1
it's hard to say if it's 128k, probably is
you can use this ($)
http://www.dungog.net/sme/help/SMEhelp/panels/Dialup.htmlor make/edit a custom-template
replace the db settings with your values
\etc\sysconfig\network-scripts\chat-ppp0\25init
'OK' 'AT{
use esmith::config;
use esmith::db;
local %dungog;
tie %dungog, 'esmith::config', '/home/e-smith/dungog';
my $device = db_get_prop(\%dungog, "dialup", "device") || 'no';
my $nt2AT = db_get_prop(\%dungog, "dialup", "nt2AT") || 'no';
$OUT = "";
if ($device ne 'no')
{
$OUT .= "Z$nt2AT";
}
else
#default template
{(defined $ModemInit) ? "$ModemInit" : ($DebugPPP && $DebugPPP eq 'yes') ? "L1M1" : "L0M0"}
}'
{
if ($DialupModemDevice eq "/dev/ttyI0")
{
# we are using an internal ISDN card
my $msn = db_get_prop($confref, 'isdn', 'Msn') || "";
my $blocksize = db_get_prop($confref, 'isdn', 'Blocksize') || "512";
# Configure HDLC as level 2 protocol
# Configure MSN
# Configure Blocksize
$OUT .= "\n'OK' 'ATS14=3&E$msn&B$blocksize'";
}
}