telli

Berlin-based AI voice agent platform for B2C sales teams that automates phone calls and lead qualification.

📍 Germany 🇩🇪, Berlin

Product overview

telli is an AI call automation platform based in Berlin that deploys autonomous voice agents for B2C sales teams. The agents make phone calls with human-like conversation abilities, qualifying leads, booking appointments, suggesting products, and transferring warm leads to human reps in real time. telli's agents are stateful: they remember previous conversations with each contact and know when to follow up, using smart calling strategies with callback logic and number rotation. The platform handles lead nurturing and reactivation through the full buying journey. telli focuses on industries with high-volume phone-based sales, including real estate, renewable energy, healthcare, financial services, and solar. The company was founded in 2024 by Seb Hapte-Selassie, Philipp Baumanns, and Finn zur Muhlen. The platform launched in November 2024 and processed approximately one million calls within its first five months of operation. telli raised EUR 3.1M in pre-seed funding in April 2025, led by Cherry Ventures with participation from Y Combinator. The company is registered as telli technologies GmbH with offices in Berlin and San Francisco. KEY FEATURES: - Autonomous AI voice agents for phone-based sales conversations - Stateful call memory with context from previous interactions - Smart calling strategies with callback logic and number rotation - Real-time warm transfers to human agents during calls - Lead qualification, appointment booking, and product recommendations