A Case Study in Real Time Voice AI Agents
Spko is a voice first AI agent platform built for real time phone conversations with end to end latency under about 400 ms. It handles streaming transcription → reasoning → speech, connects with tools and APIs, works on SIP and PSTN telephony,while also connecting over browser and chat and supports contextual retrieval so agents can actually complete tasks and not just chat. It includes a builder playground, structured forms, batch outbound calling, and flexible voices to help teams move from prototype to production without needing to create an entire voice stack on their own. 