7
Features
The OpenCom 130 allows you to use
CTI (computer telephony integra-
tion) applications made by other
manufacturers. This requires instal-
lation of a TAPI driver (supplied on
the system CD-ROM) on a Windows
PC. The OpenCom 130 also has an in-
tegrated dialling wizard, the
OpenCTI 50, with which users can
call up and use telephone functions
on PCs without first having to install
a special TAPI driver.
The OpenCom 130 complies with the
regulations for telecommunications
equipment. The DSS1 protocol is im-
plemented.
Internet Access
It is possible to connect individual
PCs to the OpenCom 130 via the in-
ternal S
0
ports, or to connect an en-
tire LAN to the OpenCom 130 via the
Ethernet port. These PCs can access
the Internet via the OpenCom 130.
For this purpose, several call-by-call
providers are preset on the
OpenCom 130 (only national setting
“Germany”). If Internet access is al-
ready available from an Internet
service provider, this can be config-
ured in the OpenCom 130. If the cli-
ent network is not IP-capable, the
OpenCom 130 can administer the IP
configuration necessary for Internet
access. The OpenCom 130 has an in-
tegrated DHCP server and a DNS
server, which in this case take over IP
address administration and name
resolution for the client PCs.
The OpenCom 130 enables Internet
access for all connected PCs by
means of a common IP address. Only
this is externally visible. The local IP
addresses of the client PCs are trans-
lated to the IP address of the
OpenCom 130 by network address
translation (NAT). In this way the cli-
ent PCs in the LAN cannot be
reached directly from the Internet.
This protects them from direct exter-
nal attack. The LAN is additionally
protected by the OpenCom 130 filter
lists, which can be customised indi-
vidually (firewall function).
Note: We recommend you to read
through the explanations under Use-
ful Information on Internet Access
starting on page 72.
DECT Data Communication
A USB DECT Box or the
OpenPhone 25 DECT terminals ena-
ble PCs that are not connected to the
OpenCom 130 via the internal S
0
ports or the Ethernet interface to ac-
cess the Internet. These PCs can
make full use of all the Internet and
e-mail features of the OpenCom 130.
Data is transmitted via the internal
data interface of the OpenPhone 25,
which must be connected to the se-
rial port of the PC by means of the
supplied adapter. The Internet can
then be accessed directly via the re-
mote data transfer (i.e. dial-up) net-
work. The OpenPhone 25 sets up a
data connection with the
OpenCom 130 via the DECT air inter-