Nokia 9290 Manuel d'utilisateur télécharger pdf (Page 22)

6.5 Advanced settings

To define advanced settings of the connection, press

Advanced settings. A dialog with four pages opens.

6.5.1 Setting proxies

You may wish to use a proxy to speed up access to the

Internet. Note also that some ISPs require the use of WWW

proxies; contact your ISP to determine the proxy details.

You may also need a proxy server when you have an Internet

connection for your company’s intranet, and as a result are

unable to retrieve Web pages from the WWW. In this situa-

tion you may need to set up a proxy server to retrieve Web

pages outside your company’s intranet.

A proxy is a server at the interface between your Nokia

9290 Communicator and the remote (target) WWW server

that offers the Web pages. Proxies usually cache popular

documents so that they do not need to be reloaded from

the remote server every time they are accessed. After you

get the connections working, you may want to test the

connection speed with and without proxies to find out

whether they offer any increase in speed.

1. Select the Protocol for your connection. (HTTP is for

normal WWW connections and HTTPS is for SSL-secured

WWW connections. Usually, but not always, the proxy

information is the same for both protocols.)

2. Set Use proxy server into Yes or No according to your

setting requirements.

3. Type in the Port number. This is often 8000, 8080, or 80,

but can vary by proxy server.

4. Type in the address of the Proxy server (either the

domain name or the IP address).

5. Type domains that should not be accessed through the

proxy server in the No proxy for field. Separate each

domain with a semicolon (;). For example, if you want to

use proxies for all pages other than those that reside in

your company’s intranet, write your company’s domain

name (e.g., yourcompany.com) in this field. If your com-

pany intranet requires the use of proxy servers, contact

your support person for details.

Note: Settings 3, 4, and 5 are available only when proxy

servers are used.

6.5.2 Modifying data call settings

1. To activate the Data call tab, press the Menu key.

2. Select the Connection type. Options are Normal and

High speed.

Note: To be able to use High speed, the network service

provider has to support this feature, and, if necessary, to

activate it for your SIM card. When using High speed, extra

charges may apply, even for received data calls within your

home network. Check with your network service provider for

details on their pricing.

3. Select the Remote modem type. The default is Analog,

but your service provider may also have ISDN connections

available. This setting may depend on both your GSM

network carrier and ISP, because some GSM networks do

not support certain types of ISDN connections. For details,

contact your ISP and network provider. ISDN connec-

tions are preferable to analog connections, because

they offer considerably faster data call establishment

(often about twenty seconds faster than with analog

connections), and offer higher data transfer speeds as

the connection is fully digital from end to end. On the

other hand, if you have problems establishing a data call

(for example, when roaming outside your home net-

work), using analog connections may help you to estab-

lish a connection.

4. Set the Maximum connection speed. When your Connec-

tion type is Normal, only autobauding, 9600, and 14400

are available. Different, higher connection speeds are

available with different combinations of High speed

settings. Higher data rates may cost more, depending on

the network service provider. The speed indicated here is

the maximum speed that will be used. The true data

transfer speed depends on congestion in the Internet, the

type of data you are downloading, whether you are run-

ning other applications on the Nokia 9290 Communicator,

on the congestion of the mobile phone network, and

on your location in the mobile phone network. In poor

reception areas, the network may choose to use a sig-

nificantly lower transmission speed.

5. Type in the Modem initialization string, if needed, to

control the Nokia 9290 Communicator using modem AT

commands. Enter characters specified by your network

service provider or ISP; otherwise, leave this field empty.

The modem initialization string specified here will override

all other data call settings. The initialization string may

be required if the normal settings are not sufficient for

a particularly complex network/IAP configuration.

For more details, see also Chapter 5 – Nokia 9290 Commu-

nicator and Data Services.

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Nokia 9290 Manuel d'utilisateur Page 22

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