Nokia 9290 Nokia 9290 Communicator User Guide - Page 323

PIN2 Code The PIN2 code is supplied with some SIM cards. The PIN2 code is required to access certain functions supported by the SIM card. The length of the PIN2 code is 4 to 8 digits. Plug-in A plug-in is add-on software that can be downloaded from the WWW. The communicator uses plug-ins to display a document that the WWW application itself cannot show POP3 (Post Office Protocol, version 3) A common mail protocol that can be used for accessing the Remote mailbox. Point-to-point protocol (PPP) A common networking software protocol which enables any computer with a modem and a phone line to connect directly to the Internet. Protocol A formal set of rules that govern how data is transferred between two devices. Proxy In some networks, the connection between the WWW and the site you want to connect to is blocked by a firewall. The firewall protects the network from unauthorized external access. A proxy is an intermediary program that enables access through the firewall. A proxy can also serve as a network cache to speed up the retrieving process. Glossary 305