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CallFirst
Your social apps stay locked each day until you phone someone you care about
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CallSitter
A voice agent that picks up your phone, sorts the caller and keeps scammers busy
It shows a working pattern for a voice agent whose behaviour is steered by a separate classifier and a fixed call flow, not by the prompt alone.
CallSitter is Peter P's self-hosted call screener. Calls divert to a Telnyx number where a realtime OpenAI agent answers; a classifier scores the transcript as scam, sales or genuine, and a YAML call flow tells the agent what to do: stall scammers, decline sales politely, or take a message. A Telegram thread shows the verdict, a rolling summary and suggested replies, flags urgent calls, and lets him steer mid-call. You can hear real recordings or try to scam it in the browser. Apache-2.0. Commenters warn that answering scam calls may mark your number as live.
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