Tal Lavian, Ph.D. Expert Witness
Curriculum Vitae


Contact this Expert Witness

  • Company: TelecommNet Consulting
  • Phone: (408) 209-9112
  • Cell: (408) 209-9112
  • Website: TelecommNet.com
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Specialties & Experience of this Expert Witness

General Specialties:

Telecommunications and Internet

Specialty Focus:

Network Communications, telecommunications, TCP/IP Internet Protocols, Web, Network security, Firewalls, Media Streaming, Voice Over IP (VoIP), Instant Messaging, Chat, SMS, MMS, short messaging, 802.11, Mobile Wireless, Patent, Routing/Switching, Data Communications, Computer networks, broadband


Ph.D., Computer Science , UC Berkeley; M.Sc, Electrical Engineering, Tel Aviv University; B.Sc, Computer Science, Tel Aviv University

Years in Practice:


Number of Times Deposed/Testified in Last 4 Yrs:


Additional Information

A scientist, technologist with 30 years of experience in routing, LAN/WAN, Ethernet, TCP/IP, UDP, IP, VoIP, and web. As a highly sought-after expert witness, Dr. Lavian has testified in Federal courts before judges and juries, the USPTO PTAB, and the ITC. He has provided support for Intellectual Property (IP) litigation cases related to over 140 patents and testified over 70 times. Highly skilled at translating complex technical subject matters into plain-English commonsense. UC Berkeley Ph.D. focus on Network Communications. Expert in: Network communications, telecommunications, Internet protocols, and 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), SNMP, network management, packet switching, network architecture • Mobile wireless: Wi-Fi, 802.11, Bluetooth, Wireless LAN (WLAN), MAC, PHY, Cellular systems, SMS, instant messaging (chat), mobile devices, smartphone • Internet/cloud: Internet Technologies, Web applications, HTTP, e-mail, SMTP, POP, IMAP, FTP, client-server, cloud computing, distributed computing • Routing/switching: LAN, WAN, VPN, routing protocols, RIP, BGP, MPLS, OSPF, multicast, DNS, QoS, queuing, network infrastructure, and architectures • VoIP/Streaming Media: VoIP, SIP, RTP, video/audio conferencing, streaming media, IP telephony, PSTN, circuit switching, WebRTC, SS7 Serving in over 140 patent-related cases, I have testified in over 70 depositions (including IPRs). I have also testified in Federal court, before both judges and juries, and before the ITC. I have supported leading companies, including Amazon, T-Mobile, LinkedIn, Avaya, AT&T, Ericsson, Sprint, Cisco Systems, Juniper Networks, Polycom, Motorola, LG, WhatsApp, Instagram, Microsoft, Google, Huawei, Facebook, and Apple in litigation cases. https://telecommnet.com