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11/15/2010Iridium Proprietary and Confidential1Direct Internet 3

Direct Internet 3 Overview11/15/2010Iridium Proprietary and Confidential2Direct Internet 3 Allows users with a data capable Iridium phone (or LBT) and computer to access the Internet through the Iridium GatewayDirect Internet 3 software is required to connect to Iridiums Direct Internet server. Once connected, users can check email, browse the Internet and transfer data (FTP) at accelerated speeds with compressionInternet

Direct InternetServer

Iridium Gateway

SwitchDirect Internet 3 SoftwareHow does Direct Internet 3 acceleration work?11/15/2010Iridium Proprietary and Confidential3Direct Internet 3 uses Slipstream technologySlipStream uses patented acceleration, compression and network optimization to enhance the online experience for dial-up while significantly reducing bandwidth requirements. SlipStream uses adaptive data compression, combined with caching and network optimization, to streamline text, graphics, Flash and Web-based emails, including attachments. SlipStream technology features industry-leading loss and lossless compression algorithms, achieving compression of HTML and XML of up to 50 times.

Direct Internet 3 speed vs. standard dial-up11/15/2010Iridium Proprietary and Confidential4AppLabs Technologies, an independant lab, compared the Web browsing acceleration performance of SlipStream over dial up Internet access to that of standard Web browsing over non-accelerated dial up Internet access. The results indicate that for dial up Internet access significantly improved the time to deliver Web pages over the Internet when compared to non-accelerated browsing:Average acceleration gain of 5.45x (faster)On Iridium, this increases the effective data speeds from 2.4kbps to 13kbps

Key Advantages over Direct Internet 211/15/2010Iridium Proprietary and Confidential5Direct Internet 2Direct Internet 3Operating Systems SupportWindows XPWindows Vista Windows 7Mac OSEasier Installation ProcessSlipstream SP6.0 Software

What Can Direct Internet 3 Accelerate?ACCELERATESWeb PagesText, HTML, XML, JavaScripts, Style Sheets and Flash ContentGraphicsJPEG, GIF and PNGEmailPOP3, IMAP and SMTPFTPDOES NOT ACCELERATESecure Web SitesHTTPS sites (e.g., Online banking)Streaming MediaAudio or Video StreamsNon-FTP File DownloadsMusic, Digital Photos or File Attachments11/15/2010Iridium Proprietary and Confidential6 Compatible Iridium Satellite Devices11/15/2010Iridium Proprietary and Confidential7Data Capable HandsetsSatellite Transceivers

9522B9505A9555Supported Web BrowsersInternet ExplorerVersions 5.0 or laterMozilla FirefoxVersions 1.5 or later11/15/2010Iridium Proprietary and Confidential8

Web Page Image Loading DifferencesDirect Internet 2Images load in their final resolution quality before usable web page becomes availableDirect Internet 3Images load in low resolution first then progressively reach final resolution quality as you continue viewing the usable web page11/15/2010Iridium Proprietary and Confidential9

Low ResolutionFinal ResolutionFinal Resolution

Direct Internet 2 HTTP Requests Sent Sequentially11/15/2010Iridium Proprietary and Confidential10

HTTP Request #2HTTP Request #3HTTP Request #4Fully Usable Web Page LoadedTimeDirect Internet 2 ServerDirect Internet 2 ClientHTTP Request #1Web Page Starts Loading

Direct Internet 3 HTTP Requests Sent Concurrently11/15/2010Iridium Proprietary and Confidential11

HTTP Request #2HTTP Request #3HTTP Request #4Fully Usable Web Page LoadedTimeDirect Internet 3 ServerDirect Internet 3 ClientHTTP Request #1Web Page Starts Loading

Accessing Email11/15/2010Iridium Proprietary and Confidential12Use a client-based email software instead of web-based email software. For example:USEAVOIDMozilla ThunderbirdWindows Live HotmailEudoraGmailWindows Live MailAOL Mail.Outlook ExpressYahoo! MailOutlookOther Internet Service Provider Webmail ServiceEntourageAny other client-based softwareAvailability11/15/2010Iridium Proprietary and Confidential13Included on CD-ROM with 9555 shipments as of DecemberAvailable online for download from Iridium for Partners in support section under Firmware/Software UpdatesInformation on Iridium.com in 9555 product section for end users (information only)

Direct Internet 3 Summary11/15/2010Iridium Proprietary and Confidential14Supports the latest Windows operating systems and the Mac OS operating system

Faster Internet connection experience over previous versions of Direct Internet

Easier Installation Process than previous versions of Direct Internet

Available on Iridium for Partners, on CD-ROM in 9555 packaging, and information page on Iridium.com