Telecommunication / Communication Technology Expert Witnesses: 16

Keith Mallinson has more than 25 years of experience in the Telecommunications Industry: as a research analyst, consultant, and testifying expert witness. Complementing his industry focus, he has a broad skill set including technologies, market analysis, regulation, economics, and finance.

Background Information - Prior to founding WiseHarbor in 2006, Mallinson led Yankee Group's global Wireless/Mobile research and consulting team as Executive Vice President, based in Boston, from 2000. Until then, he had overall responsibility for the firm's European division, as Managing Director from 1995. Prior to that, he was the European Research Director. Keith Mallinson started his career in military communications design, project management and commercial systems engineering at the UK Ministry of Defence. He also worked as an engineer at an electronic security systems company. For several years he was a director at a seed capital investment firm specializing in ICT and biotechnology. He has an undergraduate electronic engineering degree from London University's Imperial College and an MBA from the London Business School, including an academic exchange with Northwestern University's Kellogg Graduate School of Management in Illinois. Mr. Mallinson has published numerous articles and speaks publicly at major industry events on a wide variety of topics including next-generation mobile network technologies, broadband wireless, fixed-mobile convergence and substitution, handset semiconductor technologies, intellectual property patents and licensing, emerging markets in developing nations, mobile search, and advertising.

Keith Mallinson received Acquisition International’s Award for Best Mobile Communications Expert Witness 2024.

Litigation Support - Having published research on a wide variety of commercial, technical, and regulatory matters, Keith Mallinson applies his skills in market and competitive analysis, advocacy, and expert testimony. He couples sector knowledge with financial and economic analysis to derive valuations or estimate litigation damages. His skills span Telecommunication Industry Analysis and Patent Licensing. Mr. Mallinson's services are available to attorneys representing both plaintiffs and defendants. 

Areas of Expertise:

View Keith Mallinson's Consulting Profile.

James T. Geier is an independent consultant, author, and entrepreneur with 40 years experience planning, designing, analyzing and implementing Mobile Devices, Communications Systems, and Wireless Networks. Mr. Geier is the author of over a dozen books on mobile and wireless topics including, Designing and Deploying 802.11n Wireless Networks (Cisco Press), Implementing 802.1X Security Solutions (Wiley), Wireless Networking Handbook (New Riders), and Network Re-engineering (McGraw-Hill). Mr. Geier has been an active participant within IEEE standards organizations, such as the IEEE 802.11 Working Group, and the Wi-Fi Alliance. He has served as Chairman of the IEEE Computer Society, Dayton Section, and various conferences.

Litigation Support - James Geier has been an expert witness, written expert reports, been deposed, and testified in court as an expert during numerous patent litigation cases involving communications systems and protocols, Bluetooth, Wi-Fi, security, encryption, authentication, IoT, transmit power control, network addressing, transmission protection (CTS-to-self), transmission priority, quality of service (QoS), frequency hopping, multi-modal radios, OFDM, application data updates, sensor networks, and location technologies. Mr. Geier has provided the following services dealing with patent litigation:

• Patent Invalidity / Validity Analysis
• Infringement / Non-infringement Analysis
• Patent Claims Interpretation and Analysis / Claim Construction
• Product Software and Firmware Review and Analysis
• Prior Art Research and Analysis

View James Geier's Consulting Profile.

Leo Wrobel is an Inventor with over 35 years of experience in Telecommunications, Disaster Recovery/Business Continuity, and 911 Emergency Services. His talent for exploiting changes in Technology, Law, Risk Management, and Regulation has brought him broad national and international acclaim.

Litigation Support - Leo's expert witness practice includes over 100 Clients, including well-known companies and various law firms - not counting the hundreds of clients in their 35-year-old disaster recovery practice. However complex the issue, Leo translates techno-speak into plain English, allowing for a compelling presentation of your claim.

Areas of Expertise:

Background Experience - In 1986 Mr. Wrobel built the first Computer Disaster Recovery Center inside a telephone office. In 1987, he was the first in Dallas to run telephone traffic over the cable television system. He brokered a Master Services Agreement in 1995 between the largest employer in North Texas (Texas Instruments) and the two largest incumbent telephone companies (Southwestern Bell and GTE). His effort included lobbying Texas Public Utility Commissioners and various congressmen to create what was at that time the largest capacity network to an end user in Texas. Later that same year, he leveraged a 1995 Texas law to secure “unbundled” telecommunications pricing for his $70 Billion diversified financial services client. This was the first time in the USA an end user received unbundled pricing, a full year before the Federal Telecommunications Act of 1996 was passed!

In 1997 Leo founded a Competitive Local Exchange Carrier that became the first to be certified in all 50 U.S. states. Leo signed up several marquis customers for the CLEC in the Airline, Finance, Services, Education, and Government Markets before returning to private practice and the Leo A. Wrobel Companies in 2004. 

Leo has been a guest speaker in most of the 50 states, Canada, Tel Aviv, Santiago Chile, and the Chinese Academy of Sciences in Beijing. He has appeared on television news programs. Today, the Leo A. Wrobel Companies include TelLAWCom Labs Inc., FailSafe Communications, Inc., and the Network and Systems Professionals Association.

View Failsafe Communication's Business Consulting Profile.

Dr. Tal Lavian holds a Ph.D. from the University of California, Berkeley, in Computer Science, specializing in Networking and Communications. He is an expert in network communications, telecommunications, Internet Protocols (TCP/IP), LAN/WAN, Streaming media, VoIP, mobile wireless, and Internet/Web technologies. He has over 30 years of experience, has invented over 120 patents, and has co-authored over 25 scientific publications. For 20 years, Dr. Lavian has researched, studied, and lectured at UC Berkeley Engineering. He has served as an industry fellow and lecturer with UC Berkeley’s Industrial Engineering IEOR, Berkeley Engineering’s SCET, UC Berkeley’s start-up accelerator, and SkyDeck, as principal investigator for CRadar.Ai and CTO for Aybell.

Areas of Expertise:

Network Communications - Telecommunications - Internet Protocols (TCP/IP) - VoIP - Streaming Media - Mobile Wireless:

• Communication Networks: Internet protocols; TCP/IP suite, TCP, UDP, IP, Ethernet, 802.3, network protocols, network software applications, data link, network, and transport layers (L2, L3, L4), packet switching, data center network architecture.
• Mobile Wireless: Wi-Fi, 802.11, Bluetooth, MAC, PHY, Wireless LAN (WLAN). Cellular systems, SMS, instant messaging (chat), mobile devices, and smartphones.
• Internet/Cloud: Internet Technologies, Web applications, HTTP, e-mail, SMTP, POP, IMAP, Java, C/C++, file transfer FTP, client-server, cloud computing, distributed computing.
• Routing/Switching: LAN, WAN, VPN, routing protocols, RIP, BGP, MPLS, OSPF, multicast, DNS, QoS, network infrastructure, and network communication architectures.
• VoIP/Streaming Media: PSTN, voice, data, circuit switching, IP telephony, VoIP, SIP, RTP, video/audio conferencing, streaming media.

Dr. Lavian brings both hands-on and academic experience to his work in Network communications, Internet Protocols, design, and architecture. 

Litigation Support:

Dr. Lavian offers expert witness services and provides courtroom presence, clear testimony, and an ability to effectively distill complex concepts into understandable basics and commonsense.

• He has extensive experience rendering reports and testifying in Federal, IPR, and ITC cases in over 140 patent-related cases.
• Past cases have involved leading companies such as Google, Microsoft, Amazon, LinkedIn, Avaya, T-Mobile, AT&T, Ericsson, Sprint, Cisco Systems, Juniper Networks, Polycom, Motorola, LG, WhatsApp, Instagram, ZTE, Huawei, Facebook, and Apple.

View Dr. Lavian's Consulting Profile.

J. Armand Musey, CFA, JD/MBA, founder and president of Summit Ridge Group, LLC, provides expert witness testimony for the Telecom, Media, and Satellite Industries. Mr. Musey is a highly regarded financial analyst with expertise in Asset Valuation, Business Valuation, Financial Analysis of Economic Damages, and Financial Scenario Analysis.

Mr. Musey also has significant experience in corporate governance and investment research practices. He offers litigation support for clients with complex financial analysis or valuation projects. His background also includes Wall Street research methods and practices on behalf of defendants in insider trading cases.

Mr. Musey's industry knowledge, financial expertise, and extensive writing experience allow him to expediently craft well-argued independent written direct testimony documents that withstand scrutiny in depositions and during courtroom cross-examination. Prior expert witness experience and years of communicating with investors of all types have honed his skills at orally communicating his industry knowledge and financial expertise. Moreover, Mr. Musey's legal background facilitates his ability to communicate with legal professionals, understand the legal relevance of case facts, and efficiently read legal documents.

Areas of Expertise Include:

• Industry and Business
  • Broadband Communications
  • Broadcasting
  • FCC Spectrum Licenses (including orbital slot valuation and wireless spectrum valuation)
  • Satellite Communications Industry and Related Media and Telecommunications Topics
  • Wireless Communications
  • Wireless Spectrum
• Financial and Economic
  • Asset Valuation
  • Business Valuation
  • Financial Analysis of Economic Damages
  • Financial Scenario Analysis
• Other
  • Corporate Governance
  • Investment Research Practices - including accepted used of information sources and relationships with company management

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Panorama Consulting Group specializes in Enterprise Resource Planning (ERP) Systems and has multiple testifying experts for failed software litigation. This high-profile firm is called upon to investigate the feasibility of litigation, provide software expert witness testimony, and build background reporting for some of the industry’s highest-profile software lawsuits. They have worked with organizations ranging from multi-national conglomerates to boutique and large law firms, as well as state offices of the Attorney General.

As independent enterprise software experts, Panorama Consulting Group has hands-on experience with hundreds of software vendors. Their firm is not tied to a single law firm or software vendor, allowing them to focus on all types of clients and industries. 

Bill Baumann on Expert Witness Testimony

Litigation Support: The experts at Panorama Consulting Group work for both plaintiffs and defendants, software vendors and system integrators, and their customers. Their differentiator is using a team-based approach to provide expertise beyond just the testifying expert, which is cost-effective and efficient for their clients. They have multiple software expert witnesses available for provision of reports, depositions, and testimonies.

Allegations Addressed:

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Dr. Kanellakopoulos is a technology leader with 25+ years of experience in R&D and engineering management in both academia (former UCLA Professor of Electrical Engineering) and industry, and a seasoned expert witness with a perfect success record.

He has designed and built telecom products such as DSL and Carrier Ethernet hardware and software, as well as a prototype fully automated electric vehicle. He has conducted applied research in adaptive control of nonlinear systems, with applications to automotive driver assistance systems (adaptive cruise control, blind-spot monitoring, vehicle collision avoidance) and active suspensions. He has significant experience with international telecommunication standards (ITU-T SG15/Q4), and has directed collaborative projects with several automotive/truck manufacturers and vendors (Ford, Mercedes-Benz, DaimlerChrysler, Freightliner, Gentex, Visteon).

He has significant experience as an expert witness in patent infringement (including IPR) and product liability cases in the automotive and telecommunication areas; the vast majority of his cases have resulted in a win or a very favorable settlement for his clients. In 2017, he was the lead expert witness in a product liability case against Nissan that resulted in a $25M jury award for his clients; this decision was later upheld on appeal. His deep technical expertise allows him to analyze patents and products in detail, and explain clearly (in expert reports, depositions, and court testimony) the main issues that the judge and jury need to internalize in order to comprehend the essence of the case.  His extensive educational experience allows him to help judges and jurors understand the topic they are dealing with, instead of confusing them with unnecessary technical details.

After all, it takes excellent teaching skills and a deep understanding of a complex technical concept to convey the essence of that concept to non-experts without talking down to them.

View Dr. Kanellakopoulos's Consulting Profile.

Jacob Sharony, PhD, MBA, has over 25 years of experience in Mobile and Wireless Technologies. He is currently an adjunct professor at Columbia University, teaching wireless technologies and applications. He also served as a faculty member of the electrical and computer engineering department and director of the Center of Excellence in Wireless and Information Technology at Stony Brook University. Dr. Sharony held engineering and management positions in diverse technology disciplines at Time Warner Cable, Motorola, BAE Systems, NEC Research Institute, and IBM Research. He has over 50 US patents (pending and issued) and has served on several government expert panels.

Litigation Support - Dr. Sharony provides Patent and Class Action litigation support and expert consulting in mobile and wireless technologies. This includes patent infringement and invalidity analysis, FRAND analysis, writing expert reports, and deposition, and testimony in court. His deep knowledge of target markets, including telecom, healthcare, logistics, transportation, government, hospitality, mobile commerce and supply chain management, combined with extensive expertise in wireless and mobile technologies ensure innovative and successful solutions.

Areas of Expertise:

View Dr. Sharony's Consulting Profile.

Dr. Joseph Greenfield is the Vice President and Chief Forensic Examiner with Maryman & Associates. He is a renowned Computer Forensics Expert with over 15 years of investigative experience, including cyber breach investigations, employee misconduct, and email recovery and analysis. 

Dr. Greenfield is also an Associate Professor of Information Technology Practice at the Viterbi School of Engineering at the University of Southern California, where he authored both the undergraduate cybersecurity and digital forensics programs. In 2014, the Ponemon Institute ranked USC as 6th in the nation for “Best Schools for Cybersecurity” and the highest ranked on the West Coast. In 2019, he co-created an interdisciplinary bachelor's degree in Intelligence and Cyber Operations, now a part of the USC Political Science and International Relations Department in the Dornsife College of Letters, Arts and Sciences.

Litigation Support - Dr. Greenfield has over 15 years of experience in digital forensics. He has testified for both plaintiff and defense in civil matters in state, federal, and international courts. He has examined over 2,000 pieces of digital evidence and worked on over 1,000 cases. He has also provided expert testimony in criminal matters.

Areas of Expertise:

 Dr. Greenfield completed his Ph. D. in Computer Science at the University of Rhode Island, where his research focused on parallel processing of all live files while creating a forensic bitstream image.

Philip J. Isaak, PE, P.Eng., DCDC, RCDD, SMIEEE, is an expert witness, consultant & trainer in the design, construction, procurement, implementation, commissioning & operations of Information Technology, Telecommunications & Critical Data Center Facilities. 

Mr. Isaak provides clear analysis for complex disputes, incorporating industry standards, best-practices and over 20 years of consulting & training expertise working with clients located in 28 countries and territories across 6 continents. 

In recognition of Mr. Isaak’s professional standing, the Institute of Electrical & Electronic Engineers (IEEE), the world’s largest professional association for advancement of technology, certified him to the grade of Senior Member, a level only 9% of IEEE’s over 400,000 global members hold. Mr. Isaak is also an author of several industry standards published by TIA & ANSI/BICSI, whitepapers published by The Green Grid, and the Data Center Handbook published by John Wiley & Sons.

Expert Witness Services

Areas of Expertise:

View Philip Isaak's Consulting Profile.

Mr. Broyles represents 19 years experience in providing expert witness and forensic examination services combined with 32+ years experience in research, design & development of computer software and electronic products to include forensic lab equipment and forensic audio/video/image software.  This combination of experience gives invaluable insights into the forensic processes and application in each unique case or project.  Court Qualified.  Detail CV available on request.    

Areas of Expertise:

Specializing in Recorded Evidence Analysis, Enhancement and Restoration Services of Video, Audio, Image, Sound, Voice, Surveillance and Time Lapse Recordings; both digital and analog; through the use of custom and professional analysis systems.

Providing court qualified expert witness services to assist litigation support, public defenders, law enforcement, attorneys, government, and the general public.  Since 2004.  Local, nationwide and international.

Stated goal is to help you get the most from your recorded evidence.   Call now to get started.

Memberships, Affiliations and Training:

• Audio Engineering Society (AES)
• Institute of Electronics and Electrical Engineers (IEEE)
• Law Enforcement Video and Emergency Services Video Association (LEVA)
• New York Institute for Forensic Audio (NYIFA)
• International Association of Identification Rocky Mtn Division (RMDIAI)

Ian Cullimore, PhD, has over 30 years of hands-on Software and Hardware Development experience. He specializes in handheld devices, palmtops, PDAs, low power embedded systems, and Internet server technologies.

Background - Dr. Cullimore has held many employment and consulting posts as a software/hardware developer and inventor. He invented the world's first pocket PC which he licensed to Atari as the 'Portfolio'. He is also the co-inventor of the 'Poqet PC', acquired by Fujitsu. Dr. Cullimore is an experienced hi-tech CEO/CTO, yet still very hands-on with respect to architecture and coding. He has many years of experience both in the UK and California (Silicon Valley and LA) in companies ranging from small startups to large corporations, and in building and managing software and hardware teams.

An entrepreneur and start-up and young company specialist, Dr. Cullimore has helped to raise Angel and VC rounds, and has taken startups to exit. He has much experience interfacing with Boards, Investors, and sales/marketing/bizdev groups.

Litigation Support - Dr. Cullimore has a long track record as a Patent and Software / Hardware Expert Witness. His experience includes 30 cases, 19 written Expert Reports, 10 Depositions, and 3 at trial. His services are available to attorneys for both plaintiff and defendant.

Areas of Expertise:

Mark McFarland, is a licensed and Board Certified Electrical and Telecommunications Engineer.  He provides expert consulting for plaintiff and defense counsel on civil and criminal cases nationwide. 

Mark's practice covers a wide range of cases, typically involving electrical, electronic, software, cellular, GPS, and telecommunications evidence. He has worked with lawyers in several fields including: wrongful death, personal injury, product liability, securities fraud, homicide, sex trafficking, medical malpractice, class action, insurance claims, patent litigation, contract disputes, and more.

Mark has worked dozens of cases and testified in court for civil and criminal trials.

Many of the cases he's worked have settled on his expert report.

Contact Mark at Discovery Engineering when you have litigation involving electrical, electronic, software, cellular, or GPS evidence. Licensed & Board Certified.  720-593-1640

For more information, please give me a call or visit my website.  

Have a fantastic day!   

Ray Horak provides litigation support as a consulting expert and testifying expert in cases involving the Telephone Consumer Protection Act (TCPA), product/service misrepresentation, contract disputes, and intellectual property (patent, copyright, and trademark/service mark infringement) disputes, as well as issues of taxes and fees allegedly owed to 911 districts and municipalities. Those cases have involved a broad range of technologies, including Automatic Telephone Dialing Systems (ATDSs), text messaging, cellular, DSL, E911, fax, PBX, prepaid cellular, push-to-talk (PTT), videoconferencing, VoIP, ringless voice mail and voice processing.

He also has performed numerous technical compliance reviews of the telephony systems that financial institutions and survey companies and their third party vendors employ in sales, collections, customer service and opinion polling. The objective of those engagements, several of which are ongoing, is to determine the specific nature and capacities (present, potential and theoretical) of the telephony systems (e.g., ATDS and PBX) and subsystems, the systems of record (i.e., databases), Customer Relationship Management (CRM) systems, Receivables Management (RM) systems, and any and all other peripheral systems, both premises- and cloud-based.

Ray is an Independent Consultant with a General Practice in Wireline and Wireless Telecommunications and Related Fields such as the Internet and Voice over IP. His 45 years’ experience includes management and executive positions with Southwestern Bell, CONTEL, and Executone. Ray authored the best-selling Communications Systems & Networks, (John Wiley & Sons), Telecommunications and Data Communications Handbook (Wiley-Interscience), and Webster’s New World Telecom Dictionary (Webster’s New World). Previously, Ray was Senior Contributing Editor for Newton’s Telecom Dictionary (12th through 21st Editions). He has written hundreds of technical white papers, case studies, articles, and columns for major print and electronic publications such as CommWeb, Computer Telephony, Datapro, Network World, The Prepaid Press, Teleconnect, and Telecom Reseller. Ray also has served as Technical Editor for several book-length works, including Deploying Secure 802.11 Wireless Networks with Microsoft Windows (Microsoft Press, 2003).

Baw Chng is a highly experienced Networking, Communications, Computer, and Software expert. He is an inventor with 11 patents in communication and networking technology. He is also a published author, public speaker, and USPTO Registered Patent Agent.

Experience: 24+ years of professional experience in telecom and networking. Consulted for Tier-1 national communication service providers and their strategic technology vendors. Experienced in engineering R&D, standards development, and patent assessment. Baw Chng has published papers, given public talks/presentations, provided expert consulting, written expert reports, provided deposition & testimonies as an expertness.

Ideal Client - Litigators who work on cases that involve complex technical issues, patent and intellectual property related issues, business contract cases that involve sophisticated technology.

Areas of Expertise

Technical Skills and Knowledge include:

• 3GPP and 3GPP2 families of cellular mobile broadband radio access and core network standards, small cells, femtocell, inter-technology handover and roaming
• IEEE 802.11 (Wi-Fi, mesh, infrastructure), 802.3 (Ethernet), 802.15 (WiMAX), 802.16 (WPAN) families of standards
• Network architecture, telecom system architecture
• Internet standards and protocols, TCP/IP, UDP, RTP, DHCP, DNS, ARP, GRE, etc.
• Internet-of-Things (IoT), M2M, LoRa, LoRaWAN, LTE Cat-M, NB-IoT
• Hotspot 2.0 / Passpoint (for Wi-Fi)
• IPsec, IKEv2, L2/L3 tunneling, NAT/NAPT (firewall)
• SAML, SAMLv2 federation; oAuth, oAuth 2.0 authentication; RADIUS, DIAMETER
• Network & device management, Broadband Forum TR-69 and IETF SNMP standards
• Software Defined Networking (SDN), Network Function Virtualization (NFV)
• Self-Organizing Network and Self-Optimizing Network (SON)
• Web Services, REST/JSON API design & implementation, HTTP
• Cloud computing, Amazon Web Services (AWS)
• Big Data, Avro, Parquet
• Plastic Optical Fiber (POF), Optical Networking
• Software architecture, Object-oriented design and programming, design patterns
• Go Lang, C, C++, Perl, LabVIEW, BASIC, Pascal, Unix shell scripting languages
• HTML, CSS, web design & development, web hosting, JavaScript, CGI Programming
• Operating systems (RTOS, various Unix/Linux variants, iOS, Android, etc.)
• Quality of Service (QoS), Fair Scheduling, Fair Queueing
• Interconnection networks and switching fabrics for parallel computers, network switches, and routers

Master's degree in Computer Science (MSCS), Bachelor's degrees in Electrical Engineering and Computer Engineering (BSEE, BSCoE), Washington University in St. Louis.

View BAWMAN LLC's Consulting Profile.