Clear One Due Diligence findings and other matters

Clear. One Due Diligence findings and other matters 07/20/2005 Converge Pro Presentation Confidential For Rep Use (internal only)

Clear. One Solutions Portfolio Professional Conferencing Delivering superior audio performance in every conferencing space Premium Conferencing Tabletop Conferencing Performance Personal Conferencing Chat 150 Chat 50 1 -15 Participants Desktop Executive Offices SOHO Road warrior Converge Pro Converge 560/590 RAV 600/900 MAX IP, Wired & Wireless 1 -30 Participants Executive Offices Conference Room 8 -30 Participants Conference Rooms Multimedia Rooms Video Conferencing Small Classrooms Boardrooms Price 20 -200 Participants Boardrooms Training Rooms Courtrooms Multimedia Rooms Distance Learning Auditoriums House of Worship

Introducing Converge Pro Series - Any Conference - Any Room - Any Media PRELIMINARY

Professional Conferencing product line – Converge Pro Series Large-scale audio applications Models Converge Pro 880 Converge Pro 840 T Converge Pro. TH 20 Converge Pro 8 I + + Benefits + Superior Audio > > + Configuration flexibility > > + More models Improved SR feature sets Improved ease of use > > + Clear. One next generation algorithms Field proven technology Simplified programming Reduced installation times World Class customer service > > Tech support Field engineering

Converge Pro Key Features- Connections & Communications + + USB (Type B) Front Panel Control Dual Port Ethernet Connection > > + Dual Port RJ-45 Expansion Bus Connection > > > + Up to 155 Kbaud Cannot connect with console GPIO Ports > + Time Division Multiplexed Mix/Minus audio and control slots Improved speed Expanded distance to 125 feet between units RS-232 Port > > + PC Port Network Port Dual Port DB-25 Mini-Phoenix Audio channels connectors > > Color coded based on channel type Differential inputs/outputs

Converge Pro Key Features- Signal Processing + Acoustical Echo Cancellation Feature Additions > > + Automated Push-to-Talk microphone mode feature > > + Gain/Gating control tracking Cross Point Gain for channel volume control 4 - Fader channels Microphone Pre-Amp Gain > + Bypasses AEC processing (4 msec maximum delay) Mixer feature additions > > > + AEC Freezing Microphone Threshold Pre AEC Channels > + Smoothing Filters to reduce artifacts Improved Adaption and Suppression routines 7 d. B Sets for improved microphone gain matching Automatic Gain algorithms > > Automatic Level Control Automatic Gain Control

Converge Pro Key Features- Signal Processing + Telco feature additions > Caller ID - > > + Type I & Type II ( US/EU) Noise Cancellation on receive channel Clear. Effect algorithm Receive Automatic Level Control (ALC) G-Link (TH 20) Call Management/Processing additions > > > Ringer selection Robust dial tone detection scheme Improved ringer detection International impedance matching Off-Hook DTMF Generation

Converge Pro Key Features- Console Programming + Enhanced Views > Unit View - > Channel View - + Access to all signal processing Set cross point Channel object drag & drop Database Builder > > + Route Indications/Table Drag & Drop A/V Devices High level audio controls Create custom A/V devices or use C 1 Create custom channel objects Improved preset presentation > > Automatically sets input row Simplified check box on all frames

Converge Pro Key Features- System Diagnostics + Improved Signal Generator > > > + System Checks > > + White/Pink Noise Generator Sweep Generator Timed terminations Telco verification Microphone checks Output Checks Clip/Presence Indications Improved Metering > > Peak & Hold Indications Faster streaming

Converge Pro Key Features- Management + + Timed Events Embedded Web Server > > > + Control API Improvements > > > + Remote maintenance from web pages Audio control/monitoring of channels Site wide dial & control page Site firmware updates Access from standard web browser GPIO Status Command Delay Command System Checks Event/Device Logging

Converge Pro Key Features- Other + Convert/Compare Utility > > + Firmware Updates (XAP Net is built into the unit) > > > + Point to Point mode Point to Multipoint mode (Expansion Bus) Update from Web or Console Application Security > > > + Converts XAP site files to Converge files Compare Converge files for parameter differences Three access levels Administrator, Maintenance, End User Password verification Front Panel Control > > > Channel Gain/Mute control Configuration Settings Preset & Macro execution

Converge Pro Mixer Line- Channel Table Product Mic/Line Inputs Processing Channels Fader Channels Outputs Channel Telco Channels G-Link Converge Pro 880 8 4 12 0 Yes Converge Pro 8 I 8 4 0 0 Yes Converge Pro 840 T 4 4 9 1 Yes Converge Pro TH 20 0 2 1 Yes

Clear. One Audio Experience v Clear. One uses advanced audio technologies to enhance user experience • Gentner® Distributed Echo Cancellation for natural sounding conversations • Noise cancellation technology to filter ambient noise and produce cleaner transmitted audio • Advanced microphone gating for greater mic control • EQ’s and filters and enhanced sound