Nokia E62 User Guide - Page 71

Connectivity • IPv4 settings - Enter the Phone IP address and DNS address for the IPv4 Internet protocol. • IPv6 settings - Enter the DNS address for the IPv6 Internet protocol. • Proxy serv. address - Enter the proxy server address. • Proxy port number - Enter the proxy server port number. Data connections This device supports packet data (GPRS), high-speed data calls (HSCSD), and GSM data calls. Packet data GPRS (general packet radio service) enables wireless access for mobile phones to data networks (network service). GPRS uses packet data technology where information is sent in short bursts of data over the mobile network. The benefit of sending data in packets is that the network is occupied only when sending or receiving data. As GPRS uses the network efficiently, it allows for quick data connection setup and fast data transmission speeds. You must subscribe to the GPRS service. For availability and subscription to GPRS, contact your network operator or service provider. Enhanced GPRS (EGPRS) is similar to GPRS, but it enables faster connection. For more information on the availability of EGPRS and data transfer speed, contact your network operator or service provider. Note that when you have selected GPRS as a data bearer, the device uses EGPRS instead of GPRS if this is available in the network. During a voice call, you cannot establish a GPRS connection, and any existing GPRS connection is put on hold unless the network supports dual transfer mode. High-speed data calls HSCSD (high-speed circuit switched data) enables data transmission rates up to 43.2 kb/s, which is four times faster than standard data rates of the GSM network. HSCSD is comparable to the speed of many computer modems that communicate with fixed telephone networks. For availability and subscription to high-speed data services, contact your network operator or service provider. Sending data with HSCSD may drain the battery faster than normal voice or data calls, as the device may send data more frequently to the network. GSM data calls A GSM data call enables data transmission rates of up to 14.4 kb/s. For availability and subscription to data services, contact your network operator or service provider. Mobile VPN Select Menu > Tools > Settings > Connection > VPN. The Nokia mobile virtual private network (VPN) client creates a secure connection to compatible corporate Intranet and services, including e-mail. Your device connects from a mobile network, through the Internet, to a corporate VPN gateway that acts as a front door to the compatible corporate network. The VPN client uses IP Security (IPSec) technology. IPSec is a framework of open standards for supporting secure exchange of data over IP networks. VPN policies define the method used by VPN client and a VPN gateway to authenticate each other, and the encryption algorithms that they use to help protect the confidentiality of data. Contact your corporation for a VPN policy. To use VPN with an application, the application must be associated with a VPN access point. A VPN access point is made up of an Internet access point and a VPN policy. VPN management You can manage your VPN policies, policy servers, VPN logs, and key store password in VPN management. VPN policies define how data is encrypted for transfer over unsecured networks. The key store password helps protect private keys. An access point is where your device connects to the network by way of a data call or packet data connection. To use e-mail and multimedia services or to browse Web pages, you must first define Internet access points for these services. VPN access points pair VPN policies with Internet access points to create encrypted connections. To manage VPN, select VPN management > Options > Open and from the following options: • VPN policy - Install, view, and update VPN policies. • VPN policy servers - Edit the connection settings of VPN policy servers from which you can install and update VPN policies. • VPN log - View the log for your VPN policy installations, updates and synchronizations, and other VPN connections. Copyright © 2006 Nokia. All Rights Reserved. 71