This device supports WAP 2.0 protocols (HTTP and SSL) that run on TCP/IP protocols. Somefeatures of this device, such as multimedia messaging (MMS), browsing, e-mail application,instant messaging, presence-enhanced contacts, remote synchronization, and contentdownloading using the browser or MMS, require network support for these technologies.■ Shared memoryThe following features in this device may share memory: gallery, contacts, text messages,multimedia messages, instant messages, e-mail, calendar, to-do notes, JavaTM games andapplications, and note application. Use of one or more of these features may reduce thememory available for the remaining features sharing memory. For example, saving manyJava applications may use all of the available memory. Your device may display a messagethat the memory is full when you try to use a shared memory feature. In this case, deletesome of the information or entries stored in the shared memory features before continuing.Some of the features, such as text messages, may have a certain amount of memoryspecially allotted to them in addition to the memory shared with other features.■ EnhancementsA few practical rules about accessories and enhancements.