Creating A Gprs Dial Up Networking (Dun) Connection - Symbol PDT 8100 Series Product Reference Manual

PDT 8100 Series Product Reference Guide for Pocket PC 2002

Creating a GPRS Dial Up Networking (DUN) Connection

The software platform includes a virtual GPRS driver designated COM9. In the software
architecture, this driver is positioned between an application or operating system service
above, and the physical modem port below.
Use the connection manager to create a GPRS DUN connection (see Configuring a GPRS
WAN Connection (PDT 8137) on page 10-24 for detailed instructions):
1. Specify the GPRS virtual COM9 port.
2. Enter *99# and the number.
3. If your network does not assign IP or DNS addresses, enter the values.
4. Enter any required login ID and password information.
When connecting, the DUN service calls into the COM9 virtual GPRS driver. The virtual
driver powers up and registers the modem on the network, attaches to the GPRS service,
and sets up the GPRS PDP context using the network parameters. The GPRS context is
activated when the DUN service dials the *99# number.
The GPRS network parameters are different for each service provider, and the APN or DNS
address may change from time to time.
Use the registry file, the GUI utility, and the registry-aware virtual GPRS driver to remedy
this. Figure 10-14 illustrates the relationship between the registry entries, the registry file,
the virtual driver and the GUI utility.
10-20
Figure 10-14. GPRS Connection Relationship