Product Specs

Packet Modem Spec Rev6.doc 18 06/09/00
returning the last stored position. If you select the current position and you
are NOT in a call, the module will return “ERROR”. If you select the stored
position and there IS no stored position (you haven't done a position request
EVER), you'll get an error.
4.7 Roaming: The module is capable of “fixed” operation in one location
(building, tank, pipeline, and well monitoring and control) or “Roaming” type
applications such as (trucks, rail cars, aircraft, shipping containers etc.).
• Roaming within a Gateway service will keep the PPP session up the entire time
utilizing Dormant Mode.
• Roaming between Gateway Service Areas is supported. However there is no hard
hand off capability between separate gateways and the PPP session will be dropped,
and will have to be reestablished by the Terminal.
• Once on a new Gateway automatic re-registration will be performed and a new
dynamic IP address will be assigned to the terminal.
• A Service ALERT message is sent out the Data / Control Port when the modem
changes from Roaming to HOME service area and vice versa.