I will build ai voice agent using vapi bland ai retell and twilio


Level 1
About this gig
Are you spending thousands on call centers that don't convert?
We build 24/7 AI Voice Infrastructures that scale infinitely at a fraction of the cost of human staff.
I am the Lead Architect at Delpat. We don't just "setup bots." We engineer enterprise-grade Revenue Systems using Vapi, Retell AI, and Bland AI.
THE USE CASES WE DEPLOY:
- Cold Calling & Sales: The AI dials leads, qualifies interest, and books meetings directly to your calendar.
- Inbound Support: Handles 100+ simultaneous calls, answers FAQs, and routes complex issues.
- Real Estate & Medical: HIPAA-compliant setups and aggressive ISA (Inside Sales Agent) scripts.
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THE DELPAT TECH STACK:
- Engines: Vapi.ai / Bland AI / Retell AI / Synthflow
- Telephony: Twilio / Vonage (SIP Trunking)
- Automation: n8n / Make.com (Instant CRM Sync)
- CRM: GoHighLevel (GHL), Salesforce, HubSpot
WHY START WITH THE BASIC PACKAGE ($200)? Our Pilot Package proves the concept. We set up your environment (Vapi/Bland + Twilio), configure a basic script, and test latency. It is low risk, high speed.
READY TO SCALE? Stop relying on manual dialing. Message me to confirm your architecture, or book the Basic Package to start the build.
Get to know Om C
Expert Full Stack Developer , SaaS MVPs, AI Agents and Automation
Level 1
- FromIndia
- Member sinceDec 2023
- Avg. response time1 hour
- Last delivery2 weeks
Languages
English, Hindi, Spanish, Marathi
Other Software Development Services I Offer
FAQ
Do I need my own Vapi/Bland/Twilio account?
Yes. You own the infrastructure. You will pay the usage fees (cents/min) directly to the providers. I build the system inside your account so you keep the asset.
Can the AI book meetings on my calendar?
Yes. We integrate with Cal.com, Calendly, or GHL to check your availability in real-time and book slots while on the phone
Is the latency realistic?
We optimize for sub-800ms response times using Turbo models. In most cases, leads cannot distinguish the AI from a human within the first minute.
Do you offer ongoing support?
Yes. AI prompts need tuning. We offer a monthly retainer (Gig Extra) to monitor calls, tweak the script, and improve conversion rates.
Is this HIPAA compliant?
We can build HIPAA-compliant stacks using specific providers (like Retell AI/Vapi Enterprise) that sign BAAs. Please message me first for this requirement.

