Aastra OpenCom 100 series, Руководство по монтажу и пусконаладке

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Features
15
Internet Access
It is possible to connect individual PCs to the OpenCom 100 via the internal S
0
ports,
or to connect an entire LAN to the OpenCom 100 via the Ethernet port. These PCs can
access the Internet via the OpenCom 100. If Internet access is already available from
an Internet service provider, this can be configured in the OpenCom 100. If the client
network is not IP-capable, the OpenCom 100 can administer the IP configuration nec-
essary for Internet access. The OpenCom 100 has an integrated DHCP server and a
DNS server, which in this case take over IP address administration and name reso-
lution for the client PCs.
The OpenCom 100 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 translated to the IP address of the OpenCom 100 by network address trans-
lation (NAT). In this way the client PCs in the LAN cannot be reached directly from the
Internet. This protects them from direct external attack. The LAN is additionally pro-
tected by the OpenCom 100 filter lists, which can be customised individually (firewall
function).
Note
We recommend you to read through the explanations under Useful Information on
Internet Access starting on page 102.
E-Mail
The OpenCom 100 has an integrated e-mail function that is able to use the POP3,
APOP or IMAP4 protocols to check the Internet service provider for incoming mail.
When configuring the OpenCom 100, e-mail account query can be configured for
every member of staff. The OpenCom 100 then fetches the incoming e-mail headers
(subjects) and senders from the mail server at set intervals, and forwards them to
users’ system terminal.
E-mail accounts for the sending e-mail can also can be configured for users. E-mails
can then, for example, be sent directly from the OpenCTI 50 to other users. In
addition, users who have had a voicebox configured for themselves, can let them-
selves be notified of new voicebox messages via e-mail.
Important events and errors are kept by the OpenCom 100 in an internal log book: the
error store. To inform or alert the system administrators, entries in the log book
(system messages) can be sent via e-mail.