Hi Tim,
From the empty ATD command it looks like your software isn't dialling a number. Try putting *99# in as the number and see if that makes a difference.
Cheers,
Paul. 
Sent from my BlackBerry® wireless device
-----Original Message-----
From: Tim <xendistar@???>
Date: Mon, 15 Jun 2009 07:34:06 
To: Hampshire LUG Discussion List<hampshire@???>
Subject: [Hampshire] 3  Mobile broadband
I have a 3 network USB broadband mobile dongle, according to the packaging it is 
a Huawei E156G, if I plug it in and do a lsusb it comes up with the following:
Bus 001 Device 003: ID 12d1: 1003 Huawei Technologies Co., Ltd E220 HSDPA 
Modem / E270 HSDPA/HSUPA modem
It one of those which has a built USB storage device for the drivers etc. under 
windows\mac
I have followed these instructions[1] but when I try to connect I get the 
following in the login script window:
ATZ
OK
ATM1L3
OK
ATDT
ERROR
AT the bottom of the Login script window it say
Expecting :OK
The connection box just say dialing
Using kppp I have set the modem to ttyusb0 and if I use the query modem button 
in kppp it seems to talk to the modem
I am using Mepis 8 (Debian lenny base) and have tried the same setup in kbuntu 
9.04 on the same laptop
Any suggestion ?
Tim
[1] 
http://www.mepis.org/docs/en/index.php/Aircard
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