I will build ai voice agent for ai calling using vapi ai or retell ai


About this gig
AI voice agent built to close deals, not just answer calls.
I design AI voice agents and Ai calling agents that sound human, follow proven sales scripts, and close more deals with AI Cold Calling - every call, note, and booking syncs back to your CRM automatically.
Why Choose This Gig?
- Senior expertise: 3+ years building AI voice agents with Vapi AI & Retell AI for real businesses.
- Tailored builds: Every AI calling agent is trained on your scripts, FAQs, and workflows, no copy-paste chatbots.
- Live test & optimisation: We run live calls, analyze transcripts, and optimize until your AI voice agent consistently books appointments or qualifies leads.
Key Features:
- Automated appointment setter straight to Google Calendar or GoHighLevel
- AI cold calling agent with GPT-powered objection handling and lead qualification
- Multi-step email & SMS follow-ups via Make.com or n8n
- Real-time transcripts, call summaries, and CRM integration
- Multilingual voice agents that support global outreach
- Tech stack: Vapi AI, Retell AI, Bland AI, Synthflow, Make, n8n, Airtable, Sheets, Docs
Perfect for any business wanting AI calling automation.
Message me to discuss your custom AI voice agent.
Get to know Muhammad Ali
Need smart AI! I'm your guy
- FromPakistan
- Member sinceSep 2024
- Avg. response time1 hour
- Last delivery6 months
Languages
Urdu, English, Spanish
My Portfolio
FAQ
What is an AI voice agent, and what can it do?
An AI voice agent (or AI calling agent) is an automated assistant that can make and receive calls, qualify leads, handle AI cold calling, book appointments, answer FAQs, and send reminders or follow-ups 24/7—all without human intervention.
Can the AI voice agent integrate with my CRM or calendar?
Yes! I can integrate AI voice agents with GoHighLevel, Airtable, Google Sheets, and other CRMs so calls, notes, and appointments sync automatically in real time.
Can the voice agent handle inbound and outbound calls?
Absolutely. Your AI calling agent can manage inbound support calls, outbound cold calling, lead follow-ups, appointment reminders, and voicemail detection—fully automated.
Can the AI agent speak multiple languages?
Yes! I can build multilingual AI voice agents using Vapi AI and Retell AI, with support for Spanish, French, and other languages based on your needs.
How fast is the AI agent’s response time?
- English: Under 1 second on average - Other languages: ~2 seconds depending on the platform model and tech stack (Vapi AI, Retell AI, etc.)
Will the AI agent sound natural and match my brand tone?
Yes. I custom-train each AI voice agent to sound human, persuasive, and on-brand, whether your style is friendly, professional, or sales-focused.
Can I use my own scripts or FAQs to train the AI?
Absolutely. Your scripts, FAQs, and documents can be used to train the AI calling agent for accurate, brand-aligned responses.
Will the AI record and transcribe calls?
Yes. Every call can be recorded, transcribed, and summarized. Transcripts are multilingual-friendly and can sync with your CRM automatically.
Do I need coding knowledge to manage this system?
Not at all! I use no-code automation tools like Make.com, Zapier, and n8n to keep your AI calling agent simple to manage—even for non-technical users.
What if I need a custom AI voice agent?
Just message me! I can build fully custom AI voice agents for sales, support, lead qualification, or appointment setting—tailored to your business, industry, and tech stack.
8 reviews for this Gig
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
C cheapgraphizz

Germany
Mohammed and Ethan were fast and delivered what we needed! Hope to work with you soon again!
$1,000-$1,500
Price
5 weeks
Duration
H 
Seller's Response
Helpful?C conmarshall

United States
Got a real estate voice agent demo made from hyperx and it sounds impressively realistic. Great quality work!
Up to $50
Price
4 days
Duration
Helpful?C calvin2025

Australia
Brilliant to work with !
Up to $50
Price
4 days
Duration
H 
Seller's Response
Helpful?V vinnieoh
Repeat Client

United States
Excellent to work with, very responsive and knowledgable
$400-$600
Price
2 weeks
Duration
H 
Seller's Response
Helpful?M 
marketstreet1

Spain
Ali was a huge help on our AI voice agent project. He quickly fixed and fine-tuned the setup, making it work smoothly with RetellAI, n8n, and Airtable. He understood exactly what we needed, implemented the changes fast, and the end result was spot on. Super easy to work with, responsive, and knows...
Up to $50
Price
1 day
Duration
H 
Seller's Response
Helpful?
8 reviews for this Gig
| (8) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
C cheapgraphizz

Germany
Mohammed and Ethan were fast and delivered what we needed! Hope to work with you soon again!
$1,000-$1,500
Price
5 weeks
Duration
H 
Seller's Response
Helpful?C conmarshall

United States
Got a real estate voice agent demo made from hyperx and it sounds impressively realistic. Great quality work!
Up to $50
Price
4 days
Duration
Helpful?C calvin2025

Australia
Brilliant to work with !
Up to $50
Price
4 days
Duration
H 
Seller's Response
Helpful?V vinnieoh
Repeat Client

United States
Excellent to work with, very responsive and knowledgable
$400-$600
Price
2 weeks
Duration
H 
Seller's Response
Helpful?M 
marketstreet1

Spain
Ali was a huge help on our AI voice agent project. He quickly fixed and fine-tuned the setup, making it work smoothly with RetellAI, n8n, and Airtable. He understood exactly what we needed, implemented the changes fast, and the end result was spot on. Super easy to work with, responsive, and knows...
Up to $50
Price
1 day
Duration
H 
Seller's Response
Helpful?

