In March, Tech.eu reported on the story of “Rachel,” an AI voice agent created by AI engineer Matt Cortland to call more than 3,000 pubs across Ireland and ask a simple question: how much does a pint of Guinness cost? Using voice AI tools, Rachel successfully collected over 1,000 verified prices from pubs across all 32 counties, with most bartenders unaware they were speaking to an AI.
The story went viral, demonstrating the real-life impact of voice AI.
But beyond the price of Guiniess, voice technology is rapidly reshaping customer support infrastructure, replacing rigid phone menus and repetitive call centre workflows with conversational AI systems that can handle millions of interactions autonomously.
Berlin-based startup Synthflow AI is part of a new wave of companies building this infrastructure layer for enterprise communication.
Founded in 2023, Synthflow’s technology primarily automates high-volume customer phone interactions with AI voice agents that can hold natural conversations, route calls, schedule appointments, qualify leads, answer support questions, and update CRM systems in real time.
















