You will get a Custom AI Voice Agent for Calls, Booking & Lead Qualification
Project details
Transform your business with a powerful AI Voice Agent designed to answer calls, qualify leads, book appointments, handle customer inquiries, and automate repetitive communication workflows.
I specialize in building custom AI voice solutions that sound natural, respond intelligently, and integrate seamlessly with your existing systems.
What I Can Build
✅ AI Receptionists
✅ Inbound & Outbound Voice Agents
✅ Lead Qualification Systems
✅ Appointment Booking Agents
✅ Customer Support Voice Bots
✅ Sales & Follow-Up Calling Agents
✅ AI Call Routing & Transfer Systems
✅ Multi-Step Voice Automation Workflows
✅ CRM-Integrated Voice Assistants
Features Included
#Natural Human-Like Conversations #Real-Time Voice Interaction #Appointment Scheduling #Lead Qualification #Call Recording & Transcripts #SMS & Email Follow-Ups #CRM Integration #Calendar Integration #Webhook & API Connections #Workflow Automation #Call Routing & Live Transfers #Analytics & Reporting
Whether you need an AI receptionist, an outbound calling system, an appointment booking assistant, or a fully automated voice workflow, I can build a custom solution tailored to your business needs.
I specialize in building custom AI voice solutions that sound natural, respond intelligently, and integrate seamlessly with your existing systems.
What I Can Build
✅ AI Receptionists
✅ Inbound & Outbound Voice Agents
✅ Lead Qualification Systems
✅ Appointment Booking Agents
✅ Customer Support Voice Bots
✅ Sales & Follow-Up Calling Agents
✅ AI Call Routing & Transfer Systems
✅ Multi-Step Voice Automation Workflows
✅ CRM-Integrated Voice Assistants
Features Included
#Natural Human-Like Conversations #Real-Time Voice Interaction #Appointment Scheduling #Lead Qualification #Call Recording & Transcripts #SMS & Email Follow-Ups #CRM Integration #Calendar Integration #Webhook & API Connections #Workflow Automation #Call Routing & Live Transfers #Analytics & Reporting
Whether you need an AI receptionist, an outbound calling system, an appointment booking assistant, or a fully automated voice workflow, I can build a custom solution tailored to your business needs.
Purpose
BusinessIndustry
Architecture & Interior Design, Construction, Cryptocurrency & Blockchain, Cybersecurity, Data Analytics, Ecommerce, Education, Engineering, Marketing & Advertising, Real Estate, Retail & WholesaleLanguage
EnglishWhat's included
| Service Tiers |
Starter
$150
|
Standard
$450
|
Advanced
$900
|
|---|---|---|---|
| Delivery Time | 3 days | 5 days | 7 days |
Number of Revisions | 1 | 2 | 3 |
Number of Hours of Work | 5 | 10 | 19 |
Basic Photo Editing | |||
Organize & Classify/Tag Files | - | ||
Formatting & Clean Up | - | ||
Project Management Support | - | - | |
Travel Planning | - | - | - |
Frequently asked questions
5 reviews
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FA
Folawe A.
Apr 30, 2026
Voice AI Agent for Restaurant Booking System (Inbound Calls Only)
Woking with Oluwatosin was an excellent experience from start to finish. They built a highly responsive and natural-sounding AI voice agent that exceeded our expectations. The system was well-structured, reliable, and handled conversations smoothly with impressive accuracy.
Communication was clear throughout the entire project. They were proactive, detail-oriented, and always quick to address feedback or make adjustments. Their expertise in AI voice technology, automation, and workflow integration was evident at every stage.
The final solution was delivered on time, fully functional, and ready for deployment. If you’re looking for someone skilled in AI voice agents, conversational AI, and automation, I would absolutely recommend working with them. I look forward to collaborating again on future projects.
Communication was clear throughout the entire project. They were proactive, detail-oriented, and always quick to address feedback or make adjustments. Their expertise in AI voice technology, automation, and workflow integration was evident at every stage.
The final solution was delivered on time, fully functional, and ready for deployment. If you’re looking for someone skilled in AI voice agents, conversational AI, and automation, I would absolutely recommend working with them. I look forward to collaborating again on future projects.
JO
Joshua O.
Apr 29, 2026
AI Voice Agent Developer – Ongoing AI Receptionist Build With Retell AI
It was a pleasure working with Oluwatosin. They demonstrated exceptional knowledge in AI voice agent development and delivered a solution that was both powerful and easy to use. The voice agent sounded natural, handled customer interactions intelligently, and integrated seamlessly with our existing systems.
Throughout the project, communication was excellent. They understood our requirements quickly, provided valuable recommendations, and kept us updated at every milestone. Their attention to detail and commitment to quality really stood out.
The project was completed on schedule, and the final product performed exactly as promised. I highly recommend them to anyone seeking expertise in AI voice agents, conversational AI, or automation solutions. I would gladly hire them again for future projects.
Throughout the project, communication was excellent. They understood our requirements quickly, provided valuable recommendations, and kept us updated at every milestone. Their attention to detail and commitment to quality really stood out.
The project was completed on schedule, and the final product performed exactly as promised. I highly recommend them to anyone seeking expertise in AI voice agents, conversational AI, or automation solutions. I would gladly hire them again for future projects.
AO
Adebanjo O.
Apr 16, 2026
AI Voice Agent Developer (Vapi AI)
Oluwatosin stepped into this role and very quickly made it feel like the voice agent side of the business was in safe hands.
From the start, what stood out was the way he approached building with Vapi AI, not just from a technical execution standpoint, but from a systems-thinking perspective. He didn’t just “get the agent working”… he focused on how the conversations actually flowed, how users would respond in real scenarios, and how each interaction could be improved over time.
He successfully developed and deployed AI voice agent that handle real-time conversations with a level of responsiveness and clarity that’s genuinely impressive.
From the start, what stood out was the way he approached building with Vapi AI, not just from a technical execution standpoint, but from a systems-thinking perspective. He didn’t just “get the agent working”… he focused on how the conversations actually flowed, how users would respond in real scenarios, and how each interaction could be improved over time.
He successfully developed and deployed AI voice agent that handle real-time conversations with a level of responsiveness and clarity that’s genuinely impressive.
TO
Temidayo O.
Mar 15, 2026
Retell AI + n8n Voice Agent Developer – Outbound Call Automation
He was able to develop AI voice agent that interact naturally, capture responses accurately, and trigger the right workflows across our systems. The automation he set up made the outreach process far more efficient, from lead qualification to follow up actions within the CRM.
Throughout the project, Oluwatosin was professional, responsive, and solution oriented. He took the time to test the workflows carefully and ensured everything was running reliably before delivery.
Overall, it was a smooth experience working with him. I would highly recommend Oluwatosin to anyone looking for a skilled developer who can build intelligent voice agents and scalable automation systems.
Throughout the project, Oluwatosin was professional, responsive, and solution oriented. He took the time to test the workflows carefully and ensured everything was running reliably before delivery.
Overall, it was a smooth experience working with him. I would highly recommend Oluwatosin to anyone looking for a skilled developer who can build intelligent voice agents and scalable automation systems.
OP
Oke P.
Mar 8, 2026
Gohighlevel Voice Agent (Retell AI + Make.com) for Appointment Setting, AI Receptionist Expert
Fantastic work integrating our Retell AI voice agent with Cal.com. He quickly diagnosed booking issues, improved the conversation flow, and ensured reliable end-to-end scheduling. He is very skilled, responsive, and easy to collaborate with.
About Oluwatosin
AI Voice Agent Developer, AI Receptionist & AI Automation, Retell AI
100%
Job Success
Lagos, Nigeria - 6:50 am local time
"If you need an AI voice agent developed, he can surely help!"
𝐀𝐈 𝐀𝐠𝐞𝐧𝐭 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 | 𝐂𝐨𝐧𝐯𝐞𝐫𝐬𝐚𝐭𝐢𝐨𝐧𝐚𝐥 𝐀𝐈 | 𝐕𝐨𝐢𝐜𝐞 𝐀𝐈 𝐒𝐲𝐬𝐭𝐞𝐦𝐬
Are you looking to deploy a high-performing AI voice agent that books appointments, qualifies leads, and handles calls 24/7?
I specialize in AI Agent Development powered by Artificial Intelligence, Machine Learning, and Natural Language Processing to build systems that don’t just respond, they convert.
Not just bots.
Revenue-generating AI systems.
🎙️ Voice AI Systems & Chatbot Development
I design and deploy scalable solutions including:
✔ AI Phone Agents & Voice AI Assistants
✔ Intelligent IVR & Conversational AI systems
✔ Lead qualification and sales automation bots
✔ Appointment booking AI agents
✔ Real-time, low-latency voice systems
These systems combine Chatbot Development, Conversational AI, and Speech-to-Text technologies to create human-like interactions that drive results.
⚙️ API Integration, Automation & Backend Development
A powerful AI system needs strong infrastructure.
I build robust solutions using:
API Integration & RESTful API architecture
Webhooks for real-time automation
Backend Development with Python and Node.js
Workflow automation using n8n
I also integrate with:
• CRMs & business tools
• Communication platforms
• Custom dashboards
Using advanced Real-Time Systems, your AI agent can:
→ Update CRM instantly
→ Trigger workflows automatically
→ Track leads and conversions
→ Respond without delays
🤖 AI Model Integration & Voice Intelligence
Your system is powered by cutting-edge tools like:
OpenAI API for intelligent responses
Twilio API for voice and communication infrastructure
Advanced AI Model Integration for smarter automation
This enables:
✔ Natural conversations using NLP
✔ Voice processing with Speech-to-Text
✔ Intelligent decision-making using Machine Learning
💼 Real Business Results
I don’t build “demo bots.” I build systems that generate ROI:
✅ Automated lead generation systems
✅ AI agents booking qualified calls daily
✅ Reduced manual workload with full automation
✅ Faster response times with real-time AI
✅ Scalable systems that grow with your business
🧠 What Makes My Systems Different?
Most freelancers build basic bots.
I build:
• Conversion-focused AI logic
• Smart conversational flows powered by NLP
• Scalable Artificial Intelligence systems
• Reliable, low-latency voice infrastructure
• Fully automated pipelines using APIs & webhooks
I combine AI Development with business strategy, so your system actually performs.
🏥 Industries I Work With
• Healthcare
• Real Estate
• E-commerce
• SaaS
• Coaching & Education
• Service-based businesses
🎯 If This Sounds Like You…
❌ You’re losing leads due to slow response
❌ Your team handles repetitive calls manually
❌ You need better automation and scalability
Then you don’t need another assistant.
You need a smart AI system powered by Artificial Intelligence.
📩 Let’s Build Your AI System
Tell me:
• What type of calls or workflows you handle
• Your current tools or CRM
• Your biggest bottleneck
I’ll show you how to automate it using Voice AI, API Integration, and intelligent workflows.
Send me a message, let’s build something powerful. 🚀
Steps for completing your project
After purchasing the project, send requirements so Oluwatosin can start the project.
Delivery time starts when Oluwatosin receives requirements from you.
Oluwatosin works on your project following the steps below.
Revisions may occur after the delivery date.
Discovery & Persona Setup
I will review your business knowledge base, calendar rules, and scripts. Then, I’ll configure your voice agent's core system prompt, testing its tone, scheduling logic, and fallback responses in a sandbox environment.
Workflow Automation Engineering
I will build the central automation logic (similar to the blueprint in Receptionist Ai.jpg). This connects the voice agent webhooks to your calendar and configures HTTP modules to format data payload structures cleanly.