Digi Connect WAN Series User Manual page 89

Digi Connect WAN Family web interface
Reset the link after the following number of consecutive link integrity test failures:
n
Disconnects and reestablishes the mobile connection after the configured number of
consecutive link integrity test failures. This value must be between 1 and 255. The default is 3.
When the mobile connection is reestablished, the "consecutive failures" counter is reset to
zero.
If the mobile connection is disconnected for any reason (including not as a result of a link
integrity test failure), the consecutive failures count is reset to zero when the mobile
connection is reestablished.
Status and statistical information for mobile connections
Once the mobile settings have been configured, you can monitor the status of mobile connections by
going to Administration > System Information > Mobile. See
From the command line, this mobile information appears when you issue the display mobile and
display pppstats commands.
Update PRL settings
Note These settings apply to Digi cellular-enabled products that use the Sierra Wireless MC57xx series
CDMA/EVDO modules.
The Update PRL page is for loading a preferred roaming list (PRL) into the cellular module on the Digi
device. A PRL is a database that resides in a mobile device that contains information used during the
system selection and acquisition process. It is built by the mobile service provider, and is normally not
accessible to users. The PRL indicates which bands, sub bands and service provider identifiers will be
scanned and in what priority order. Without a PRL, a mobile device may not be able to roam, or obtain
service outside of the home area. There may be cases where missing or corrupt PRLs can lead to not
having service at all.
On many networks, regularly updating the PRL is advised if the subscriber uses the device outside the
home area frequently, particularly if they do so in multiple different areas. This allows the mobile
device to choose the best roaming carriers, particularly "roaming partners" with whom the home
carrier has a cost-saving roaming agreement, rather than using non-affiliated carriers. You can use
the PRL files to identify home networks along with roaming partners, thus making the PRL an actual
list that determines the total coverage of the subscriber, both home and roaming coverage.
To load a PRL, fill in values for these settings:
PRL File: The location and name of the PRL file to be loaded into the cellular module. Type the
n
PRL file's pathname or click the Browse button and use the browse dialog to select the file.
MSL/OTSL: The master subsidy lock (MSL) or a one-time subsidy lock (OTSL) associated with
n
the module. This value is a six-digit activation or unlock code supplied by the mobile service
provider.
Click the Upload button to upload the PRL file to the cellular module.
If the PRL loading/updating operation was successful, the status message PRL update successful
appears in a blue box above the settings.
If an error occurs, a red box with a message describing the error appears above the settings.
You can update PRL over the air by dialing the over-the-air (OTA) feature code *228.
Digi Connect WAN Family User Guide
Configuration through the web interface
Mobile Information and Statistics.
89