Internet Telephony Expert Witnesses: 9

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.

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).

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!   

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:

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. George Edwards, Ph.D. is an expert in Computer Software, Internet Applications, Web Technologies, Mobile Phone/Tablet Applications, Digital Video and Multimedia, Medical and Embedded Software, and Aerospace/Defense Systems. He has more than a decade of experience as a scientist, engineer, and technical consultant to academic research labs, government agencies, technology companies, and attorneys.

Dr. Ewards has authored dozens of articles and papers related to software engineering for scientific journals and industry magazines. He is listed as a co-inventor on two pending patent applications for novel software technology and has served as a software expert witness in patent litigation matters.

• Intellectual property and patent infringement
• Software design/source code audit and review
• Non-performance claims
• Expert witness and depositions

Expert Technologies :

• Programming languages & platforms: Java, C/C++, C#, Perl, Python, PHP, .NET, WinForms, WPF, Visual Studio, Eclipse, Java EE, CORBA
• Internet and web: JavaScript, AJAX, Node.js, Ruby, HTML, XML, CSS, ASP.NET
• Mobile devices & applications: Android, iOS, iPhone, Windows Mobile, Windows Phone, BlackBerry, Palm OS, Java ME
• Multimedia: MPEG, SVG, DVR, Silverlight, Flash
• Operating systems & servers: UNIX, Linux, Windows, Mac OS
• Networking: IMAP, POP, SMTP, DNS, TCP/IP, HTTP
• Databases: RDBMS, SQL, MS SQL Server, MS Access, Oracle, MySQL
• Project management & development methods: Kanban, Lean software development, agile, object-oriented (OO), aspect-oriented programming (AOP), component-based development, COTS integration, requirements engineering, spiral model, UML

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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.

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

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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.