I will vapi ai voice agent retell ai cold calling for inbound outbound calling CRM sync


Level 1
What people loved about this freelancer
joshhua_paul

Australia
Working with this seller was a really good experience. I needed a simple AI voice agent setup with CRM integration and everything was completed exactly as discussed....
joshhua_paul

Australia
Great experience working with this seller. Communication was smooth throughout the project, and they kept me updated at every stage. The automation workflow...
joshhua_paul

Australia
Really pleased with the final delivery. The seller understood the project requirements quickly and implemented the automation exactly as discussed. Updates...
About this gig
Missed calls leak revenue. Your competitor's ai voice agent already answered, qualified the lead and booked the meeting before you blinked. I build the same voice ai agent for you.
I deploy production grade ai voice agent, ai calling agent, ai chatbot and ai automation systems using vapi ai, retell ai, synthflow, bland ai, elevenlabs and n8n ai agent flows that sound human and convert.
What you get:
- Inbound ai receptionist 24/7
- Outbound ai cold calling agent for lead gen
- Appointment booking and appointment setter flows
- n8n automation and make com workflow automation
- Gohighlevel crm integration and pipeline sync
- Twilio call routing and live human transfer
- Custom scripts, eleven labs voices, multilingual support
- Full testing & clean handover docs
Tools: Vapi ai, Retell ai, Synthflow, Blend ai, ElevenLabs, n8n, Twilio, OpenAI, Calendly, Make com, Ultravox, Airtable
Why me:
- Real production builds, not demos
- Battle tested in real estate, SaaS, agencies, dental, HVAC
- Sharp comms, fast turnaround
- 14 days post delivery support
Message me with your use case and I will map the exact stack and timeline before you spend a cent. Order now and your ai voice agent will be live within days.
Get to know Lewis Bernald
Vibe Coding Expert, Lovable AI Developer, AI Automation Specialist
Level 1
- FromUnited States
- Member sinceApr 2026
- Avg. response time1 hour
- Last deliveryabout 7 hours
Languages
English, Spanish, German, French, Portuguese, Dutch, Polish, Arabic
FAQ
Which AI voice platforms do you work with?
I build on VAPI, Retell AI, Synthflow, and Bland AI. After we chat about your use case I'll recommend the one that fits best, each has different strengths for cold calling, inbound receptionist work, or multilingual setups.
Can the AI handle both inbound and outbound calls?
Yes, I set up both directions. Inbound covers receptionist work, FAQs, routing, and bookings. Outbound handles cold calling, follow-ups, and lead reactivation. Most clients want both running off the same agent.
How long does the build take?
A basic single-agent setup ships in 3 to 5 days. Multi-agent squads with CRM sync, custom call flows, and full testing usually take 7 to 14 days. I'll give you a firm timeline before you order.
What CRMs can it integrate with?
GoHighLevel, HubSpot, Salesforce, Pipedrive, Zoho, Airtable, Notion, Cal Com, Google Sheets, and anything with an open API. The sync covers contact creation, tagging, call transcripts, summaries, and pipeline updates.
Will the agent actually sound human?
That's the goal. I use ElevenLabs voices with sub-second latency, natural pacing, interruption handling, and tuned prompts so conversations flow without obvious bot tells. You'll hear a live demo before delivery.
Do I need to set up Twilio or any other accounts first?
You'll need accounts on the voice platform (VAPI or Retell) and a number provider like Twilio. I can walk you through both, most clients have everything live within an hour. Platform usage costs sit outside the order.
Can it book appointments directly into my calendar?
Yes. The agent connects to Google Calendar, Calendly, Cal.com, or your CRM's calendar (GoHighLevel, HubSpot, and so on). It checks availability live, books the slot, and sends confirmation via SMS or your preferred channel.
What languages does it support?
English is default. Spanish, French, German, Italian, Portuguese, Arabic, Hindi, Mandarin, and several others are fully supported. Multilingual agents that switch language based on caller input are also possible, just mention it before ordering.
What do you need from me to get started?
A short brief on your use case, a sample script or talking points, the tools you want connected, and any FAQ knowledge you want the agent to pull from. If you don't have a script, I'll draft one for your approval.
Do you offer revisions and post-delivery support?
Every package includes revisions until the call flow performs the way you want. After delivery I provide 7 to 14 days of support depending on the tier, covering bug fixes, prompt tweaks, and minor integration adjustments.
6 reviews for this Gig
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
J 
joshhua_paul

Australia
Working with this seller was a really good experience. I needed a simple AI voice agent setup with CRM integration and everything was completed exactly as discussed. Communication was clear throughout the project, and every question I had was answered quickly. The seller took the time to test the workflow,...
Up to $50
Price
2 days
Duration
L 
Seller's Response
Helpful?J 
joshhua_paul

Australia
Great experience working with this seller. Communication was smooth throughout the project, and they kept me updated at every stage. The automation workflow was delivered as requested and worked well after testing. They were also quick to make adjustments when needed. Very professional and easy to work with.
$100-$200
Price
1 day
Duration
L 
Seller's Response
Helpful?J 
joshhua_paul

Australia
Really pleased with the final delivery. The seller understood the project requirements quickly and implemented the automation exactly as discussed. Updates were provided regularly, and any small issues were resolved promptly. Overall, a reliable and skilled freelancer to work with.
$100-$200
Price
3 days
Duration
L 
Seller's Response
Helpful?J 
joshhua_paul

Australia
He's always going beyond in each milestone stone we work on, I'm so excited. highly recommended
Up to $50
Price
2 days
Duration
L 
Seller's Response
Helpful?J 
joshhua_paul

Australia
Great seller, i'm super excited meeting you in the first place, he solves all my problem, Highly recommended
Up to $50
Price
2 days
Duration
L 
Seller's Response
Helpful?
6 reviews for this Gig
| (6) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
J 
joshhua_paul

Australia
Working with this seller was a really good experience. I needed a simple AI voice agent setup with CRM integration and everything was completed exactly as discussed. Communication was clear throughout the project, and every question I had was answered quickly. The seller took the time to test the workflow,...
Up to $50
Price
2 days
Duration
L 
Seller's Response
Helpful?J 
joshhua_paul

Australia
Great experience working with this seller. Communication was smooth throughout the project, and they kept me updated at every stage. The automation workflow was delivered as requested and worked well after testing. They were also quick to make adjustments when needed. Very professional and easy to work with.
$100-$200
Price
1 day
Duration
L 
Seller's Response
Helpful?J 
joshhua_paul

Australia
Really pleased with the final delivery. The seller understood the project requirements quickly and implemented the automation exactly as discussed. Updates were provided regularly, and any small issues were resolved promptly. Overall, a reliable and skilled freelancer to work with.
$100-$200
Price
3 days
Duration
L 
Seller's Response
Helpful?J 
joshhua_paul

Australia
He's always going beyond in each milestone stone we work on, I'm so excited. highly recommended
Up to $50
Price
2 days
Duration
L 
Seller's Response
Helpful?J 
joshhua_paul

Australia
Great seller, i'm super excited meeting you in the first place, he solves all my problem, Highly recommended
Up to $50
Price
2 days
Duration
L 
Seller's Response
Helpful?

