VEGA INSYS Modem GPRS 5.0 - Manual (Page 88)

GPRS General INSYS GPRS 5.0 serial
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8.4.1 Fixed IP address and VPN connection
The service provider mdex (http://www.mdex.eu) offers the service "fixed.IP".
With this service, one or more devices in a virtual private network can be ad-
dressed. SIM cards are thus grouped to form a closed network with a private IP
address area. Connections from the company network to the devices will then be
established via a VPN tunnel.
The service fixed.IP from mdex will enable GPRS devices to communicate with
each other as well as with computers in the Internet via a VPN connection.
8.5 Data Rates
The INSYS GPRS 5.0 serial has the following characteristics:
GPRS Multislot class 12
GPRS End device class B
Support of coding scheme 1 to 4
PBCCH Support
GPRS has several classes (multislot classes) which are relevant for the transmis-
sion speed. The classes provide the maximum transmission speed for uplink and
downlink.
The table below shows the number of time slots for the classes, which can be
used for uplink, downlink, and for the device altogether.
GPRS devices support all variants up to their own Multislot class.