1. Network Overview July 2007

2. The SkyWave Network Inmarsat D+Satellites SP Server1 GPS Satellites SP Server2 Internet Versa Gateway Land Earth Station (LES) Internet SkyWave Terminals GSM/GPRS Network

3. SkyWave Network Overview • Cost-effective, dependable satellite data communications • Integrated satellite and cellular communications • Redundant infrastructure for High Availability • Secure connectivity to Solution Providers • Over 10 years of proven dependable operation SkyWave’s network enables mission-critical communications for remote applications

4. SkyWave D+ Satellite Communication • Operates on Inmarsat satellites • Global application coverage between +/- 75° latitude • 99.998% availability geosynchronous network • Proven, dependable global satellite communications • L-band operation • Reliable, not impacted by weather • Ideal for use in demanding environments • Coordinated around the world • Does not conflict with other networks or emergency services • Data only network • No contention for resources with other services (no ‘busy’ signal) • Consistently high quality of service

5. SkyWave D+ Network Operation • SkyWave operates service on 5 global regions • Mobile units automatically roam, no additional fees • Predictable latency (~ 1 minute) • Near real-time monitoring and control • Ideal for remote or fixed industrial applications • Bi-directional communications • Enables control of remote devices and processes • Ensures robust and cost-effective operation (remote reconfiguration or turn on/off)

6. SkyWave D+ Network Coverage

7. SkyWave D+/GPRS Integration • GPRS is ideal for low-cost, high bandwidth applications when in cellular range • SkyWave D+ improves GPRS-based applications • Reliable and low cost ‘back-up’ link for GPRS • Offers a low cost alternative to GPRS roaming • SkyWave’s technology helps you develop reliable, low cost solutions quickly • Versa multi-protocol gateway for D+/GPRS • SureLinx 8100 D+/GPRS integrated wireless controller

8. SkyWave D+/GPRS Coverage • GSM coverage indicated by orange shading • GPRS coverage is typically less than GSM • D+ satellite ‘back-up’ increases reliability & reduces risk for GPRS based applications (Source: GSM World, Inmarsat)

9. Versa Gateway Values • Highly reliable and secure • Fully redundant, housed in secure data centre • Reliable high up time to ensure high service quality • SSL encryption between Versa and SP server • Ensures secure connectivity anywhere using the Internet • State-of-the-art technology for responsiveness & capacity • Future proof your application • Easy to use • Web-based administration • Secure access from anywhere in the Internet • Consolidates D+ and GPRS traffic • Simplifies application development and maintenance • Supports multiple SP servers (control stations) • Enables end-to-end robust architectures for high quality service delivery to your customers