User manual

Psion Teklogix 7535/7530 Hand-Held Computer User Manual 209
Chapter 5: Configuration
Data Connection Configuration
While automatic connection mode is enabled, the Connect Data button in the main
Wireless LAN dialog box changes to Disable Auto. To close the currently active
connection (if any) and disables the automatic connection mode:
• Tap on Disable Auto.
Important: Automatic connection mode should not be used if applications
other than the Wireless WAN user interface (e.g. Connection
Manager) are expected to open and close connections.
If the automatic connection mode is enabled and another applica-
tion closes the GPRS connection, the WWAN user interface will
immediately try to re-establish the connection.
In most cases, the data connection is configured automatically and no user
interaction is required. This is true even if multiple SIM cards from different
operators are used with the same device. The connection parameters are adjusted
automatically when a new SIM card is detected (this may require a warm boot). The
connection parameters are retrieved from a database.
Manual configuration should be necessary only if:
• One or more parameters in the database are incorrect or a new operator is
not yet in the database. (The database should be corrected for subsequent
software releases.)
• An operator has assigned individual GPRS user names and passwords.
• A very large site has their own APN. Such connections always have to be
configured manually.
• A customer has subscribed for a static IP address. By definition this must be
configured manually.
Important: For CDMA/1xRTT, automatic configuration is not available –
connections must be configured manually. Under APN, the
packet service access number must be entered (typically “#777”).
In the following section, all the parameters that need to be configured for a
connection (such as APN, user name, password, DNS server addresses etc.) are
referred to as a profile. Every profile is identified by an arbitrary, unique name. The
profile named Default is special in that it is always present and can neither be edited
nor deleted. (A sample dialog box is presented in Figure 5.101 on page 208.) The