1. E911 Solution By: Mo Zonoun February, 2000

2. Mo Zonoun - 1 Bluetooth wireless technology Bluetooth facilitates real-time voice and data transmissions, which makes it possible to connect any portable and stationary communication devices. Connections are instant and they are maintained even when devices are not within line of sight. Instant connection to another Bluetooth radio as soon as it comes into range. Supports both point-to-point and point-to-multipoint connections Several piconets can be established and linked together. Supports email, two way messaging, LAN and IP access Fully functional in noisy environment Data are protected by advance error-correction method, encryption and authentication routine for privacy. For more information see (http://www.bluetooth.com).

3. Mo Zonoun - 2 Bluetooth Specification Normal Range10m (0dbm) Optional Range100m (+20 dbm) Normal Transmitter Power 0dbm (1mw) Optional Transmitter Power-30 to +20 dbm (100mw) Receiver Sensitivity-70 dbm Frequency2.4 GHz Cross Data Rate1 Mbits/s Max Data Transfer721+56 kbits/ 3 Voice Channel Power Consumption, Hold/Park~50 uA, Standby300 uA, Max30 uA

4. Mo Zonoun - 3 Solution Bluetooth devices are installed in various locations as beacon which communicate their physical locations to the desk top and portable devices when activated by a 911 call. Two methods are recommended for the installation of Bluetooth beacon: a) LAN wall outlet (for 10 meter “Normal” range of Bluetooth operation) or b) Central (for 100 meter “Optional” range of Bluetooth operation). For (a) method, a Bluetooth device is integrated into each wall outlet and powered from the LAN permanently or when devices are plugged into LAN’s wall outlet. For (b) method, each device is powered directly with battery back up. The beacon is in a standby mode until it detects a nearby Bluetooth device, in which case becomes operational. The beacon is programmed to transmit a code representing its physical location or coordinates when activated by 911 call. The physical location coordinates transmitted by the beacon will be picked up by the device that initiated the 911 call and transported over IP to the E911 server. The E911 server determines the appropriate jurisdiction and provides support for the call server to establish call with the PSAP.

5. Mo Zonoun - 4 IP x y z x,y,z Bluetooth Solution Wall Mounted LAN Connector Bluetooth Transmitter E911 Server a Call Server

6. Mo Zonoun - 5 Information Flow for 9-1-1 Calls PSAP E911 Server Bluetooth Beacon Appropriate Jurisdiction tel.no. De-activate Transmit ter E911 call establishment E911 Call E911 Call with Embebed Loc & Call back # Call Server Loc. Request Activated Beacon Loc Code Loc. Code E911 Call

7. Mo Zonoun - 6 Advantage Provides accurate location information (10 meter for wall outlet method). Supports all scenarios including VPN and Telecommuter location information. Interoperate with Cellular and wireless devices equipped with Bluetooth.

8. Mo Zonoun - 7 Not backward compatible Requires retrofitting of the sets Requires industry adoption to provide 100% coverage for the VPN. Disadvantage