Case Study: Goodcall achieves ultra-low-latency AI phone agents with Cartesia

Former Google Text‑to‑Speech Product Lead partners with Cartesia for Business AI Phone Agents

Goodcall, an AI phone agent provider for businesses, was looking to enhance its service for reception, sales, and support. The company required a text-to-speech solution that could deliver more human-like and responsive conversational quality for their AI agents to improve customer interactions.

By partnering with Cartesia and implementing its Sonic text-to-speech product, Goodcall achieved a significant performance improvement. The solution delivered industry-leading latency of 90 ms and enabled a 97% interaction rate on calls. Cartesia provided the voice quality and speed that allowed Goodcall to silently switch from their previous provider with zero customer complaints, resulting in a more human and effective automated agent.

Goodcall

Bob Summers

CEO & Founder