Tal Lavian, Ph.D.

Network communications, Telecommunications, and Internet Protocols




  • Sep 12, 2015


  • Sunnyvale, United States

    Active Country

  • English


  • Practice Areas

  • Specialization


Dr. Lavian is a scientist and technologist with 30 years of experience. He specializes in telecommunications, mobile wireless, network communications, and Internet protocols, including mobile devices, smartphones, wireless LAN (WLAN), routing, LAN/WAN, Ethernet, TCP/IP, UDP, IP, VoIP, web, and streaming media. He has invented over 120 patents.

Network communications, telecommunications, Internet protocols, and mobile wireless:
• Communication networks: Internet protocols; TCP/IP suite; TCP; UDP; IP; Ethernet; network protocols; network software applications; data link, network, and transport layers (L2, L3, L4), data center network architecture
• Internet software: Internet software applications; distributed computing; cloud computing; Web applications; FTP; HTTP; Java; client-server; file transfer
• Routing/switching: LAN; WAN; VPN; routing protocols; RIP; BGP; MPLS; OSPF; IS-IS; multicast, DNS; QoS; switching; packet switching; network infrastructure; network communication architectures
• Mobile wireless: wireless LAN; 802.11; cellular systems; mobile devices; smartphone technologies
• Unified Communications: PSTN, circuit switching, IP telephony, VoIP, SIP, SS7, video and audio conferencing, streaming media, e-mail, instant messaging (chat)

• Retained in over 60 cases
• Testified in Federal courts, In front of a jury, in PTAB IPR, and in the ITC
• Articulated technical material to technical and non-technical audiences
• The cases involved leading companies including Google, Motorola, Microsoft, Amazon, Cisco System, Juniper Networks, Huawei, HP, T-Mobile, Ericsson, LG, Facebook, Samsung. and Apple.

Work history

University of California, Berkeley, Berkeley, California, 2000-Present
SkyDeck, Berkeley Industry Fellow, Lecturer, Visiting Scientist, Ph.D. Candidate, Nortel's Scientist
Some positions and projects were concurrent, others sequential
• UC Berkeley SkyDeck startups - advanced technology research, development, business, and market
• Industry fellow and lecturer at the Sutardja Center for Entrepreneurship and Technology
• Conducted research projects in data centers (RAD Labs), telecommunication infrastructure
(SAHARA), and wireless systems (ICEBERG)
• Acted as scientific liaison between Nortel Research Lab and UC Berkeley, providing
a tangible value in advanced technologies
• Studied network services, telecommunication systems, and software, communications
infrastructure, and data centers
• Earned a Ph.D. in Computer Science with a specialization in communications and
• Developed long-term technology for the enterprise market, integrating communication and
computing technologies

TelecommNet Consulting, Inc. Sunnyvale, California 2006-Present
Principal Scientist
• Consulting in the areas of network communications, telecommunications, Internet protocols,
and smartphone mobile wireless devices
• Providing system architecture and technology analysis for computer networks, mobile
wireless devices, and Internet web technologies projects
• Expert witness in network communications patent infringement lawsuits
Aybell, UC Berkeley, California 2016-Present
• Aybell transforms smartphones into visual menu systems, making the phone a frictionless
point for user interactions with all features of customer service platforms. Empowers
consumers to reach the right agents in call centers, overcoming customer service barriers
• Architecture, design and implementation of a cloud data center for connecting any
smartphone user, to any company and/or service, by digitizing interactive voice systems,
and exposing through cloud-service APIs to other applications. Aybell is a branding and marketing of VisuMenu advanced technologies.
• The system is deployed as a cloud networking and cloud computing service on Amazon
Web Services (AWS) and Google Cloud Platform (GCP)
• Technologies include Data Science analytics, Machine Learning (ML), Artificial Intelligence
(AI), and Statistical Learning (SL). Building an NLP Parser using Python, NLTK, SpaCy and
other NLP libraries and modules

Co- Founder and Chief Technology Officer (CTO)
VisuMenu, Inc.
January 2010 – Present (5 years 9 months)Sunnyvale
• Designs and develops the architecture of visual IVR technologies for smartphones and wireless mobile devices in the area of network communications.
• Designs a search-engine for IVR / PBX phone systems (using Asterisk, SIP and VoIP).
• Deploys the system as cloud networking and cloud computing utilizing Amazon Web Services (EC2, S3, VPC, DNS, and RDS).

Network Communications Consultant
January 2008 – December 2008 (1 year)Santa Clara, CA
Researched and developed advanced network communications testing technologies including the following:
• IxNetwork/IxN2X — tests IP routing and switching devices and broadband access equipment. Provides traffic generation and emulation for the full range of protocols: routing, MPLS, layer 2/3 VPNs, Carrier Ethernet, broadband access, and data center bridging.
• IxLoad — quickly and accurately models high-volume video, data, and voice subscribers and servers to test real-world performance of multiservice delivery and security platforms.
• IxCatapult — emulates a broad range of wireless access and core protocols to test wireless components and systems. When combined with IxLoad, provides an end-to-end solution for testing wireless service quality.
• IxVeriWave — employs a client-centric model to test Wi-Fi and wireless LAN networks by generating repeatable large-scale, real-world test scenarios that are virtually impossible to create by any other means.
Test Automation — provides simple, comprehensive lab automation to help test engineering teams create, organize, catalog, and schedule execution of tests.

Principal Scientist
Nortel Labs
May 2000 – April 2007 (7 years)Silicon Valley, California
Principal Scientist, Principal Architect, Principal Engineer, Senior Software Engineer:
• Held scientific and research roles at Nortel Labs, Bay Architecture Labs, and in the office of the CTO
Principal Investigator for multiple US Department of Defense (DARPA) projects:
• Conceived, proposed, and completed three research projects: Active Networks, DWDM-RAM, and a networking computation project for Air Force Research Lab (AFRL)

Academic and Industrial Researcher:
• Analyzed new technologies to reduce risks associated with R&D investment
• Spearheaded research collaboration with leading universities and professors at UC Berkeley, Northwestern University, University of Amsterdam, and University of Technology, Sydney.

Patent Leader:
• Created and chaired Nortel Networks’ EDN Patent Committee – entire Nortel patent portfolio eventually sold for $4.5 billion.
• Assembled and led multiple groups of data and voice communication technologists, which resulted in a continuous stream of innovative ideas.

Java User Group - Mountain View - Silicon Valley
January 1999 – January 2001 (2 years 1 month)
President of the Java User Group with over 800 active members.

Principal Architect
Bay Architecture Labs
March 1996 – May 2000 (4 years 3 months)Silicon Valley, California
• Built collaborative teams of Ph.D. students, professors and high-level industry researchers
• Proactively identified prospective business ideas, which lead to the creation of new profitable networking products
• Researched the technology horizon and academic world to predict technological trends
• Analyzed and determined the potential success of new technologies in order to reduce development risk associated with R&D investment
• Led Opentlab.org

Software & Networking Leader
Aptel Communicaiton
August 1993 – August 1995 (2 years 1 month)
Start-up company focused on mobile wireless CDMA spread spectrum PCN/PCS

Software Engineer, Team Leader:
• Developed a mobile wireless device using an unlicensed band [Direct Sequence Spread Spectrum (DSSS)]. FCC part 15 - unlicensed transmitters.
• Designed and managed a personal communication network (PCN) and personal communication system (PCS), the precursors of short text messages (SMS)
• Designed and developed network communications software products (mainly in C/C++)
• Brought a two-way paging product from concept to development

Software developer, Network leader
January 1990 – August 1993 (3 years 8 months)
Software and hardware company acquired by Hewlett Packard (HP)

• Developed system and network communications (mainly in C/C++)
• Invented Parallel SIMD Architecture
• Participated in the Technology Innovation group

Software Engineer
January 1986 – December 1989 (4 years)
Start-up company.

Developed real-time software and algorithms mainly in C/C++ and Pascal.

Education and qualifications

University of California, Berkeley
Ph.D., Computer Science specializing in networking and communications
2000 – 2006

Tel Aviv University
M.Sc., Electrical Engineering
1987 – 1996

Tel Aviv University
B.Sc., Math and Computer Science
1983 – 1987




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Ultra low phase noise frequency synthesizer


Systems and methods for electronic communications


Grid proxy architecture for network resources


Systems and methods for visual presentation and selection of IVR menu


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