Lancom Systems 3550 Benutzerhandbuch

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LANCOM 3550 Wireless
 Chapter 1: Introduction
12
EN
For a group of staff members, who e.g. often work together on projects at a
customer’s location, a so-called mobile conference room can be established.
The access point then only has to be configured once by the administrator; the
staff members on location simply have to supply the device with power and
slot in the data card. With an appropriate configuration the router automati-
cally builds up a connection to the Internet. The result is that all notebooks
with a compatible passphrase in the WLAN configuration can directly access
the Internet. As long as the router has a VPN connection to headquarters, the
field staff can also access all of the services in the network of headquarters
(fileserver, mailserver, data bases) from the mobile office.
With the LANCOM UMTS/VPN Option the VPN support with five con-
nection channels is automatically activated. Further information to
the configuration can be found in the LCOS reference manual.
1.2.3
UMTS/HSPDA Backup
The high availability of data lines e. g. between branch offices and headquar-
ters in large company networks are in the majority of cases established over
backup solutions with ISDN or analog. The standard Internet connection is
then provided e. g. over a DSL connection, and an ISDN or analog line is used
as a backup line in the case the DSL line breaks down. 
Internet connection over UMTS/HSPDA
Internet
Mobile WLAN, e.g. for a „mobile 
conference room“.
VPN connection to headquarters