1. Copyright Digital Acoustics LLC 2008 1 IP-based Communication Solutions for the Parking Industry

2. Copyright Digital Acoustics LLC 2008 2 IP-based Parking Communication Management Local, Regional, National and Mobile

3. Copyright Digital Acoustics LLC 2008 3 Digital Acoustics Solutions Offer Lowered Personnel Costs Lowered Personnel Costs Improved Revenue Management Operations Improved Revenue Management Operations Enhanced Security and Customer Satisfaction Enhanced Security and Customer Satisfaction

4. Copyright Digital Acoustics LLC 2008 4 Digital Acoustics Approach A Balanced Combination of Integrated IP-based Hardware and Software Designed for Command-and-Control Environments

5. Copyright Digital Acoustics LLC 2008 5 Digital Acoustics Applications Feature Intercom for Revenue Management Equipment and Emergency Call Stations Intercom for Revenue Management Equipment and Emergency Call Stations Overhead Paging for emergency and informational messaging Overhead Paging for emergency and informational messaging Access Control via On-Board Relay and Sensor Access Control via On-Board Relay and Sensor

6. Copyright Digital Acoustics LLC 2008 6 Digital Acoustics Benefits Scalable from 1 to 1,000’s End-Points; Scalable from 1 to 1,000’s End-Points; One at a Time One at a Time 100% IP; LAN or WAN, Including Internet 100% IP; LAN or WAN, Including Internet Integrated Digital Audio Recorder (DAR) Integrated Digital Audio Recorder (DAR) Easy-to-Use Hardware and Software Easy-to-Use Hardware and Software IP Phone and Cell Phone Compatibility IP Phone and Cell Phone Compatibility Support for New, Retrofit and Hybrid Applications Support for New, Retrofit and Hybrid Applications

7. Copyright Digital Acoustics LLC 2008 7 Digital Acoustics Benefits- cont. Operates over Wireless, Wired and Fiber Networks Operates over Wireless, Wired and Fiber Networks Compatible with most Revenue Management Systems Compatible with most Revenue Management Systems AmanoAmano DataParkDataPark Federal APDFederal APD SkiDataSkiData ZeagZeag OthersOthers

8. Copyright Digital Acoustics LLC 2008 8 Digital Acoustics Products IP7 IP Hardware Family IP7 IP Hardware Family IntercomsIntercoms Paging Audio Amplifiers Paging Audio Amplifiers TalkMaster Management Software TalkMaster Management Software TalkMaster Limited Edition (TMLE)TalkMaster Limited Edition (TMLE) TalkMaster Enterprise Edition (TMEE)TalkMaster Enterprise Edition (TMEE) SIP Media Gateway (SMG) SIP Media Gateway (SMG) Objectives

9. Copyright Digital Acoustics LLC 2008 9 Digital Acoustics Solutions Convert Analog Audio to IP Packets Convert Analog Audio to IP Packets Provide Voice-Quality Audio with Low Network Utilization (64 kbps) Provide Voice-Quality Audio with Low Network Utilization (64 kbps) Standards Compliant: TCP/IP for Intercom and Uni-Cast or Multi-Cast for Paging Standards Compliant: TCP/IP for Intercom and Uni-Cast or Multi-Cast for Paging Network ‘edge devices’ with unique IP and MAC Addresses Network ‘edge devices’ with unique IP and MAC Addresses Addressable via DHCP or Static IP’s Addressable via DHCP or Static IP’s

10. Copyright Digital Acoustics LLC 2008 10 TalkMaster LE Software (TMLE) Configures Intercom and Paging Systems Configures Intercom and Paging Systems Manages Intercoms and Paging from a Primary Operator Console Manages Intercoms and Paging from a Primary Operator Console Supports up to 250 End-Points Supports up to 250 End-Points Free with the Purchase of any IP7 Product Free with the Purchase of any IP7 Product

11. Copyright Digital Acoustics LLC 2008 11 TalkMaster Enterprise Edition (TMEE) Configures Intercom and Paging Systems Configures Intercom and Paging Systems Multi-Operator Management of 1,000’s End-Points Multi-Operator Management of 1,000’s End-Points Server Architecture with Rules-Based Call Routing Server Architecture with Rules-Based Call Routing Software Priced Beginning at $1,499.00 for Three Concurrent Operators; PC provided by customer Software Priced Beginning at $1,499.00 for Three Concurrent Operators; PC provided by customer Software Development Kits (SDK) for Custom Applications Software Development Kits (SDK) for Custom Applications

12. Copyright Digital Acoustics LLC 2008 12 Recent Parking Successes St. Judes Childrens’ Hospital, TN St. Judes Childrens’ Hospital, TN Toronto Parking Authority, ON, Canada Toronto Parking Authority, ON, Canada Froedert Hospital, WI Froedert Hospital, WI Port Authority of NY /NJ- Newark Airport Port Authority of NY /NJ- Newark Airport William Mitchell Field, WI William Mitchell Field, WI

13. Copyright Digital Acoustics LLC 2008 13 Thank you for Choosing Bill Vernon 877.724.3387 Ext. 225 bill@digitalacoustics.com