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Appendix B - Windows Log on using a GSM/GPRS Dial-up Connection
Appendix B - Windows Log on using a GSM/GPRS
Dial-up Connection
The GC79 PC Card supports the Windows
Log on using dial-up connectio
n feature. To log on
to Windows using a GSM or GPRS dial-up connection the GC79 PC Card must be inserted and the radio
enabled before you log on. To enable the radio prior to logon, select
Enable radio immediately when
card inserted
checkbox on the
Radio Power
preferences tab, see
on page 36 for
more details.
Important!
Never start your PC in this mode if you are in a location where mobile devices shouldn’t be used,
for example, on an aeroplane, in hospital or near a blast site.
Only check this option if you need to log on to a Windows Domain via a wireless dial-up connection.
This will permit the GC79 to register with the GSM network and establish a connection when the
Windows logon screen is displayed.
Note:
It is not possible to display network status or signal strength during the Windows logon procedure,
so you should allow enough time for the GC79 to find and register with the network prior to
attempting to log on.
The dial-up connections available to the Windows Logon must have been created by a user account with
Administrator
privilege and designated
For all users
. This must be done using the
Windows Network
Connection Wizard
, because the
Wireless Manager
can only create connections for the current
user ID. Normally the Windows Logon using dial-up connection will be using a CSD/HSCSD session
to a corporate network, so that the logon credentials can be validated by a Windows Domain Server.
Note:
A HSCSD networking session will require some additional settings to be added to your ini string,
see
Appendix D- Initiating a HSCSD Connection from Outside the Wireless Manager
There may be special circumstances where a GPRS dial-up connection is required for logon.
To create a GPRS dial-up connection, follow these steps:
1. Create the Windows dial-up connection using the
Windows Network Connection Wizard
.
For the telephone number, use *99***3#.
2. Set the GPRS context parameters in the GC79 PC Card.
Open a Windows Hyperterminal session on the same port as the GC79, running at 115Kbps,
and type in the following AT Command.
AT+CGDCONT=3,“IP”,“<AccessPointName>”,“”,0,0
where <AccessPointName> is the name of the special GPRS access point for your corporate
GPRS service.
Note:
In this example, we used GPRS Context 3. There are 1-10 possible contexts supported by the
GC79 PC Card (1..8). Context ID 2 is reserved for connections created by the Wireless Manager.
Refer to the GC79 AT Commands Manual or contact your service provider for further assistance.
