You will get Build an AI Voice Agent for Calls, Support & Booking
Project details
Want an AI voice agent that answers your phone, books appointments, and handles customer calls 24/7? I build real-time AI phone agents that sound natural, understand callers, and take action — so you never miss a call or lead again.
Whether you need an inbound support line, an outbound sales or reminder caller, or a receptionist that books straight into your calendar, I deliver a production-ready voice agent tailored to your business.
What I build:
• Real-time inbound & outbound voice agents
• Appointment booking & calendar integration
• Call routing & smooth human handoff
• CRM, helpdesk & API integration
• Multilingual voice support
• Low-latency, natural-sounding conversations
Built with the best voice stack:
Vapi, LiveKit, Retell, Twilio, ElevenLabs, Deepgram, Whisper, GPT-4 & Claude.
Why work with me:
✅ Top Rated Plus — top 1% of talent on Upwork
✅ $100K+ earned across 89+ projects
✅ 9,900+ hours of proven delivery
✅ End-to-end: from call flow to live deployment
Tell me what you want your voice agent to handle and I'll recommend the right setup. Message me to get started.
Whether you need an inbound support line, an outbound sales or reminder caller, or a receptionist that books straight into your calendar, I deliver a production-ready voice agent tailored to your business.
What I build:
• Real-time inbound & outbound voice agents
• Appointment booking & calendar integration
• Call routing & smooth human handoff
• CRM, helpdesk & API integration
• Multilingual voice support
• Low-latency, natural-sounding conversations
Built with the best voice stack:
Vapi, LiveKit, Retell, Twilio, ElevenLabs, Deepgram, Whisper, GPT-4 & Claude.
Why work with me:
✅ Top Rated Plus — top 1% of talent on Upwork
✅ $100K+ earned across 89+ projects
✅ 9,900+ hours of proven delivery
✅ End-to-end: from call flow to live deployment
Tell me what you want your voice agent to handle and I'll recommend the right setup. Message me to get started.
AI Algorithms
AdaBoost, AlexNet, Autoencoder, Convolutional Neural Network, CycleGAN, Deep Belief Network, Feedforward Neural Network, Gated Recurrent Unit, Generative Adversarial Network, Large Language ModelAI Applications
AI Chatbot, AI Content Creation, AI Mobile App Development, AI Text-to-Image, AI Text-to-Speech, AI-Enhanced Classification, AI-Enhanced Medical Imaging, AI-Generated Art, AI-Generated Code, AI-Generated Music, AI-Generated Video, AIOpsAI Development Language
PythonAI Tools
Adobe Firefly, Azure OpenAI, Bing AI, Copy.ai, GitHub Copilot, Gradio, Hugging Face, Jasper AI, Microsoft 365 Copilot, Microsoft CNTKAI Models
AlphaCode, BERT, BLOOM, ChatGPT, DALL-E, Dolly, GPT-3, GPT-4, GPT-J, GPT-Neo, Jurassic-2, LaMDAWhat's included $200
These options are included with the project scope.
$200
- Delivery Time 5 days
- Number of Revisions 1
- AI Model Integration
- Batch Normalization
- Database Integration
- Detailed Code Comments
- Image Upscaling
- MLOps
- Model Deployment
- Model Documentation
- Model Monitoring
- Model Testing & Optimization
- Model Tuning
- Natural Language Processing
- NLP Tokenization
- Pre-Training
- Prompt Engineering
- Setup File
- Source Code
3 reviews
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EG
Ernest G.
Jul 3, 2026
Ai Agent
Excellent and Professional Work! Extremely helpful to a newbie like myself. Communication to notch.
GG
Gina G.
Jul 3, 2026
Singing and dancing kids eating cupcakes
I will definitely rehire Pankaj again! His work is of a high standard and he is very experienced at what he does. He told me he could get it done and didn't stop until he achieved it. But the main reason I want to work with him again is that he is patient and willing to go out of his way to make me happy. I was able to get exactly what I needed for this reason. I requested that he lip-sync 4 children singing a children's song. This was a difficult and detailed request, but he managed to figure out a way to get it done to the point - the words of the song fit the mouths of the children perfectly. Therefore, I highly recommend him. His price is worth every penny!
AS
Adunola S.
Apr 11, 2026
AI Setup Help for Windows OS
About Pankaj
AI Agents | AI voice agent | AI chatbot | RAG | Openclaw
76%
Job Success
Greater Noida, India - 7:51 am local time
✅ IIT BHU Alumnus with 5 Years Enterprise & AI Experience (TCS, HCL Technologies)
✅ Expert in Advanced AI Pipelines, Agentic Workflows, and GraphRAG Architecture
✅ Skilled in Python, FastAPI, Node.js, NestJS, Next.js, and Cloud Infrastructure
✅ Available 30+ hrs/week | Dedicated, reliable, and highly responsive
✅ Goal: Build a 100% Job Success Record on Upwork through top-tier engineering
🔴 I may be new to the Upwork platform, but I bring half a decade of production-level engineering experience scaling systems for global tech giants.
🔴 Transitioning to full-time freelance AI development investing my full focus, speed, and enterprise standards into your project.
🔹 AI & LLM Skills
AI Agents / Agentic Workflows: LangGraph, CrewAI, AutoGen, CrewAI Multi-Agent setups
Advanced RAG: GraphRAG, LlamaIndex, Knowledge Graphs via Neo4j, Hybrid Vector Search
Frontier Models: Claude 3.5 Sonnet/Opus, OpenAI GPT-4o, Gemini 1.5 Pro, Llama 3.2 Vision
Edge AI & SLMs: Ollama, Llama 3.1/3.2, Phi-4 (Quantized deployment for cost optimization)
Voice & Multimodal AI: OpenAI/Gemini Native Realtime WebSockets APIs (Low-latency audio)
Observability & Vector DBs: LangSmith, Pinecone, Qdrant, Milvus, Chroma DB
🖥️ Backend Skills
Python (FastAPI, Flask) | Node.js, Express.js, Nest.js
Real-Time Data Streaming: Kafka, Redis Streams, WebSockets
API Development: Secure RESTful APIs, gRPC, and GraphQL
Databases: PostgreSQL, Supabase, MongoDB, Redis (Semantic Caching)
DevOps & Cloud: Docker, AWS (EC2, Lambda, S3, Bedrock), Vercel
🌐 Frontend Skills
React.js, Next.js 15 (App Router, Server Components)
TypeScript, Redux Toolkit, Tailwind CSS
Building highly responsive, secure, data-driven AI SaaS Dashboards
🛠️ Tools & Technologies
ML libraries: Scikit-learn, Pandas, NumPy
LLM Fine-tuning & Optimization: LoRA, PEFT, Hugging Face Hub
Version Control & CI/CD: Git, GitHub Actions
🌟 Why Work With Me?
I am building my freelance portfolio after 5 years in enterprise engineering. I deliver fast, communicate clearly, and charge fairly while I establish my Upwork presence. Every project gets my full attention.
Warm regards,
Pankaj
Steps for completing your project
After purchasing the project, send requirements so Pankaj can start the project.
Delivery time starts when Pankaj receives requirements from you.
Pankaj works on your project following the steps below.
Revisions may occur after the delivery date.
Discovery & Call Flow
I map out the conversation flow, use cases, telephony setup, and the voice and language you want.
Voice & Logic Build
I build the agent with speech-to-text, the LLM brain, and natural text-to-speech, then wire up your tools.