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Configuration Examples

102

Useful Information on Internet Access

Costs

The OpenCom 100 uses a router function to access the Internet, which means that it

automatically establishes an Internet connection when required and terminates the

connection after a certain period of time if no data are being transmitted.

Unfortunately, programmes other than those typically intended to access the Internet

(such as your browser or your e-mail software) may send out data packets which

cause an Internet connection to be established, even if these programmes are not

strictly Internet-associated applications.

Examples of such programmes are the Microsoft

operating system, various

multimedia programmes such as Realplayer

and anti-virus applications that may

establish an Internet connection for automatic updates (the so-called “phone home

function”).

It is therefore highly advisable to limit ISP access by specifying the maximum monthly

connection time under Connection time per month in the Network: WAN: [Pro-

vider] menu on the web console.

Using the Web

A Web browser not only enables you to use the OpenCom 100 Configurator from

every workstation computer but also to obtain a wealth of information from the

Internet. Simply enter the desired URL in the address field of the browser. Access from

a stand-alone PC via an online service differs from Internet access via the

OpenCom 100 in the following respects:

• When you request a Web page, dialling in results automatically. There is no display

of dialogues with manual confirmation of dialling in or hanging up.

• Requesting Web pages is not a connection-orientated service. When the Web

page has been loaded completely, the TCP/IP connection is cleared. If you do not

request further Web pages, the OpenCom 100 automatically releases the con-

nection to the Internet after a certain, specifiable duration.

• It is possible to call up Web pages simultaneously from several workstations.

• The OpenCom 100 can block access to certain Web pages by means of filter lists.

Aastra OpenCom 100 series User Manual

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