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I will build and debug ai voice agent app with livekit webrtc vapi twilio low latency
Bukky
About this gig
Voice agent lagging, talking over your callers, or dropping mid-call? Or you've heard about LiveKit, Vapi and the OpenAI Realtime API but don't know how to wire them to a real phone number?
Most voice-agent freelancers just click around a dashboard. Most WebRTC engineers don't speak AI. I speak both.
I build AI voice agents on the actual real-time layer WebRTC transport, turn detection, Twilio SIP so your agent answers in under 500ms instead of sounding like a robot on hold.
- Build inbound AI receptionists that answer, qualify and book appointments
- Build outbound AI callers for lead qualification and follow-up
- Set up LiveKit Agents, Vapi, Retell AI, Pipecat or OpenAI Realtime API
- Connect Twilio or Telnyx SIP for real inbound + outbound phone numbers
- Fix WebRTC latency, ICE candidate failures, TURN/STUN and audio dropouts
- Tune interruption handling and turn-taking so it stops talking over people
- Add function calling book slots, look up orders, check availability
- Integrate GoHighLevel, HubSpot, Calendly, n8n or Make.com
- Add RAG so your agent answers from your own documents
- Rescue half-built or vibe-coded voice agents
- Add EU AI Act Article 50 AI-disclosure compliance
CONTACT ME
Get to know Bukky
Bukky
AI Agent Automation Developer, n8n, Shopify, Claude Code
- FromNigeria
- Member sinceMay 2026
- Avg. response time1 hour
Languages
English, Spanish, German, French, Italian
I’m Bukky, an AI automation and agent developer helping businesses save time, reduce manual work and turn repetitive processes into reliable systems. I build AI agents, smart workflows and business applications that improve customer support, lead generation, data processing, CRM operations and internal tasks. Using n8n, Shopify, Claude Code, Lovable, Base44, Supabase, Airtable and APIs, I connect your tools into practical solutions built around your goals.
Whether you need to automate a process, fix an AI app or build a system from scratch, I focus on results, reliability and ease of use.
My Portfolio
FAQ
Can you build an AI voice agent with LiveKit Agents?
Yes. I can build custom voice agents with LiveKit Agents, WebRTC, SIP and external tools, depending on the project's architecture and requirements.
Should I use Vapi, Retell AI or LiveKit for my voice agent?
Vapi, Retell, LiveKit and Pipecat each make sense for different architectures. I'll help choose the right stack based on your call volume, integrations, latency requirements and level of control.
Can you connect my AI voice agent to Twilio for real phone calls?
Yes. I set up Twilio Programmable Voice, Twilio SIP trunking or Telnyx so your agent gets a real inbound and outbound phone number. LiveKit also ships first-party SIP, so in many builds you won't need a Twilio bridge at all.
My WebRTC connection keeps failing, can you fix ICE candidate and TURN issues?
That's one of my most-ordered services. I debug WebRTC ICE candidate failures, STUN/TURN misconfiguration, NAT traversal problems, one-way audio, and dropped peer connections across LiveKit, mediasoup, Janus and raw WebRTC implementations.
Can you reduce my voice agent's latency? It sounds slow and robotic.
Yes. Most "slow" agents aren't slow models, they're bad pipelines. I tune WebRTC transport, STT endpointing, streaming TTS and turn detection to get end-to-end response under 500ms, versus the 2+ seconds a naive Whisper-to-GPT-to-ElevenLabs chain produces.
Can you build with the OpenAI Realtime API?
Yes. I build speech-to-speech agents on the OpenAI Realtime API, including SIP calling, function calling and MCP tool use. I'll also give you the honest cost comparison against a cascaded Deepgram + LLM + Cartesia pipeline, which lands around $0.05/minute.
Can my AI voice agent book appointments and look up information?
Yes, this is the difference between a demo and a product. Using function calling, your agent can check availability, book slots, look up orders and write into GoHighLevel, HubSpot, Calendly, Airtable, n8n or a custom REST API mid-conversation.
Can you build an AI receptionist for my clinic, salon, law firm or agency?
Yes. I can build inbound AI receptionists for clinics, salons, law firms, agencies and other businesses to answer questions, qualify callers, book appointments and hand off to a human when needed.
Can you fix a broken or half-built voice agent someone else made?
Yes. Voice agent rescue work is welcome, send me the repo or dashboard access and I'll audit the WebRTC layer, latency, turn-taking and telephony, then give you a fixed-scope quote to get it into production.
Do I need to worry about AI compliance in the EU?
Yes. Article 50 of the EU AI Act includes transparency requirements for AI systems that directly interact with people. Where applicable, I can implement clear AI disclosure in the voice-agent greeting or user interface. This is a technical implementation service, not legal advice.
