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Reverse engineering a Viking VOIP phone protocol with Claude Code#

AI Engineer Europe 2026 digest Program Wildcard pick 8–10 April 2026

Speaker not listed in the program (expo session)

  • Why: For anyone from the networking world, LLM-assisted protocol reverse engineering is the crossover: black-box traffic analysis is a classic network-engineering skill, and here an AI agent does it against undocumented hardware — a signal of where agent capabilities are heading.
  • What: A walkthrough of dissecting and reconstructing the protocol behind a Viking VoIP phone: capturing traffic, identifying patterns, using Claude Code to accelerate understanding and implementation, and turning the black-box device into a programmable interface.
  • How: Traffic capture plus pattern identification, with an LLM coding agent accelerating the low-level protocol analysis and the implementation of the reconstructed protocol.
  • Where applicable: Legacy and embedded device integration anywhere; the technique is general even though the case study is a single device. Short expo format and no named speaker — expect a compact story.