Case Study: telli achieves higher customer satisfaction and faster deployment with Cartesia

telli gets up and running with Cartesia's low latency, human-like AI voices in just an hour

telli, a fast-growing startup that builds AI voice agents for sales-driven B2C companies, faced challenges in scaling their text-to-speech (TTS) capabilities. They needed a solution that provided natural, human-like voices in multiple languages, had very low latency for their call infrastructure, and could meet EU data residency requirements, all while being easy to integrate.

By implementing Cartesia's TTS service, telli was able to get up and running in just one hour. The solution provided superior voice quality and diversity, including access to high-quality German voices and advanced voice cloning features. As a result, telli saw a massive improvement in customer satisfaction, established a key competitive advantage, and created new high-value service offerings, with Cartesia's technology becoming a critical pillar of their success.

telli

Ennie Raguse

Founders Associate