SIPHON

SIPHON

Build production AI calling agents in minutes. Open Source.

blackdwarftech
@blackdwarftech
Last updated on Feb 17, 2026
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About SIPHON

The open-source foundation for production Voice AI. Stop renting your core telephony infrastructure. If you are building an AI calling agent on a managed CPaaS platform, you aren't just paying for the underlying AI. You are paying a compounded, punitive middleman fee just to wire models together. Meet SIPHON. We built the open-source alternative: a pure Python framework that bridges legacy SIP telephony to modern LLMs over ultra-low latency WebRTC pipelines. It provides the exact same sophisticated orchestration as expensive wrappers, but you host it on your own servers. Why enterprise teams and developers are switching to Siphon: πŸ’Έ Zero Platform Fees (BYOK): Plug in your own API keys (OpenAI, Deepgram, Twilio) and pay wholesale baseline provider rates. Keep 100% of your margins. ⚑ Sub-500ms Latency: Powered natively by WebRTC and the LiveKit engine. Local VAD execution halts TTS audio instantly when a human speaks, completely eliminating the robotic "walkie-talkie" effect. βš–οΈ Zero-Config Horizontal Scaling: Run 1 worker or 1,000. Siphon autonomously load-balances active voice sessions without complex Kubernetes HPA rules. πŸ›‘οΈ Enterprise Data Sovereignty: Run it in your own VPC. Unredacted customer audio, transcripts, and metadata never leave your infrastructure. 🧠 Production Workflows: Natively handles dynamic inbound SIP routing, programmatic outbound fleets, cross-session caller memory, and asynchronous tool-calling (e.g., booking Google Calendar invites mid-conversation). We are actively building the open future of telephony and would love feedback from the PeerPush community. Check out the architecture, drop a star, and let us know what you build! GitHub Repository: https://github.com/blackdwarftech/siphon

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Product Updates (3)

blackdwarftech
@blackdwarftech

Voice AI is finally moving from "chatting" to "doing."

We've just released native Google Calendar integration for Siphon to bridge the "Context Gap." Usually, connecting an agent to a real-world schedule requires a nightmare of OAuth flows and custom API glue. We've abstracted that into a single configuration flag. This turns a standard voice agent into a functional worker that can check real-time availability, negotiate slots, and handle cancellations without double-booking. It’s the difference between an AI that talks about a meeting and an AI that actually schedules it. Check out the new Dental Receptionist example in our GitHub repo to see how this works in about 30 lines of Python logic. GitHub: github.com/blackdwarftech/siphon

Product had at the time: 60 upvotes β€’ 13 comments β€’ 51 followers β€’ 67 PeerPush

Comments (5)

PowerInterviewAI

πŸ‘

autoforgeatd
@autoforgeatdMar 30, 2026

Love the this creation looking forward to future updates.

alcazarsec
@alcazarsecMar 18, 2026

This is clearly the future. How fast does that future arrive though is to be seen.

olli
@olliMar 6, 2026

Cool stuff! πŸš€

blackdwarftech
@blackdwarftech

Siphon: Zero-Config Horizontal Scaling

Scale your AI voice infrastructure effortlessly. Siphon removes the complexity of high-volume telephony with built-in Zero Config Horizontal Scaling. Instant Expansion: Define your agent logic once. To scale, simply spin up additional worker instances on any server. Siphon automatically detects and integrates them immediately. Intelligent Load Balancing: Traffic is dynamically distributed across all active workers, ensuring stability and low latency. Limitless Capacity: Scale from a single worker to thousands without changing your architecture. Focus on building intelligence, not managing bottlenecks.

Product had at the time: 8 upvotes β€’ 4 comments β€’ 7 followers β€’ 5 PeerPush

Comments (2)

PowerInterviewAI

πŸ‘

purplebird7613
@purplebird7613Feb 16, 2026

Looks great πŸ‘

blackdwarftech
@blackdwarftechFeb 16, 2026

@purplebird7613 thanks...πŸ€

blackdwarftech
@blackdwarftech

The "Context Gap": Why Voice AI Usually Fails

Most voice agents are great conversationalists but terrible employees. They can discuss the meaning of life, but they can't book a dental appointment. Why? Because talking is easy, but integration is hard. Traditionally, connecting an AI to a calendar required a mountain of "fragile glue": parsing dates, managing OAuth tokens, and writing custom API logic. Enter SIPHON: Native Google Calendar Integration We’ve turned scheduling into a first-class citizen. Instead of weeks of coding, enabling a calendar now takes one line of configuration: agent = Agent( google_calendar=True ) From Novelty to Utility With SIPHON, your agent isn't just chatting; it’s working. It can: Check Real-Time Availability: No more double-booking. Manage Events: Create, reschedule, or cancel appointments via natural speech. Verify Context: Intelligently handle conflicts and suggest new slots. The 24/7 Dental Receptionist We’ve moved beyond "toy demos." Our Dental Clinic example shows a production-ready agent that identifies patients, checks the dentist’s actual live calendar, and confirms bookingsβ€”all through a phone call. The Result: Clinics, salons, and consultants can deploy a functional AI receptionist in minutes, not weeks. Ready to give your voice agent a calendar? I can help you draft the configuration for a specific industry or walk through the integration steps. Would you like to see how this handles complex rescheduling?

Product had at the time: 4 upvotes β€’ 0 comments β€’ 4 followers β€’ 1 PeerPush

Comments (2)

PowerInterviewAI

πŸ‘

ottomate
@ottomateFeb 15, 2026

Are SDKs just for Python?

blackdwarftech
@blackdwarftechFeb 16, 2026

@ottomate yes for now

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Comments (11)

D
@devarajanchandu

Good initiative and most demanded 🌐

xaioene
@xaioene

@devarajanchandu yeah it might be helpful i guess....let's seeπŸ€”

ottomate
@ottomate

I'll have to give it a try!