Sony Ericsson P800 manual 147

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GPRS Advanced tabs

IP address types

There are four different types of IP addresses:

•IPv4: Consists of four 3-digit boxes and valid input is between 000 and 256 in each box.

•IPv6: Consists of eight hexadecimal boxes and valid input is between 0000 and FFFF in each box.

•IPv4 compatible: Consists of four 3-digit boxes and valid input is between 000 and 256 in each box.

•IPv4 mapped: Consists of four 3-digit boxes and valid input is between 000 and 256 in each box.

IPv4 is the most common addressing method.

Proxy A proxy server is a computer connected between your P800 and the computer you communicate with. This arrangement can be used for connections to Remote Sync servers, or within a company network. If this setting is needed, your company's Information Services department or Remote Sync provider must give you instructions.

Other If your ISP supports Point to Point Protocol (PPP) extensions, you can select the Enable PPP extensions check box. PPP extensions allow your P800 to provide features such as encryption, which increases the security of your Internet connection.

GPRS Advanced tabs

Authenti	Authentication is used by some network operators to
cation	identify the mobile phone connecting to their GPRS
	network. There are different methods, or protocols, for
	doing this.
	Normal: PAP (Password Authentication Protocol). The
	user's username and password are transmitted over the
	network in an unencrypted form.
	Secure: CHAP (Challenge Handshake Authentication
	Protocol). The user's username and password are never
	transmitted over the network.
	None: No authentication is required by the network
	operator.
	Your ISP may require plain text authentication. If you
	select the Plain text authentication check box, the security
	of your connection will decrease during the connection
	process. Once you are connected, the security of your
	connection will be restored.
QoS	Check with your network operator before changing any of
	the QoS (Quality of Service) settings.
	If your operator supports the use of Header compression,
	selecting On can speed up your connection.
	The settings Precedence, Delay, Peak rate, and Mean Rate
	are all by default set to Subscribed, which means that your
	operators default QoS (Quality of Service) values will
	apply. Reliability is set as Class 3 by default.

Control panel 147