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I will build ai cold calling agents and voice agent for lead qualification vapi retell
Kelvin D
About this gig
Are missed calls, slow follow-ups, and manual lead screening costing you customers?
I will build a custom AI cold calling and voice agent that qualifies leads and books appointments. Using Vapi, Retell AI, and your CRM, I set up a calling flow around your offer, script, and sales process.
What I Can Help You With:
- AI calling agent for outbound lead calls and inbound inquiries
- Lead qualification with your custom questions and scoring
- AI appointment setter with calendar booking
- AI cold calling scripts with objection and opt-out handling
- CRM updates in GoHighLevel, HubSpot, or Google Sheets
- AI call summaries and instant team notifications
- n8n, Make, or Zapier workflow connections
My goal is to help you reach new leads faster, cut repetitive calling work, and book more qualified conversations.
Whether you need an AI sales agent, an outbound calling system, or a lead qualification voice agent, I will build it around your workflow and test it before delivery. You stay responsible for calling consent and local rules, and I will help configure the flow.
Message me before placing an order so we can confirm your use case and scope.
Get to know Kelvin D
Kelvin D
AI Voice Agents and Automation Specialist
- FromUnited States
- Member sinceSep 2026
- Avg. response time1 hour
Languages
English, Spanish, French, German
Glad You're here,
Hi, I'm Kelvin, an AI voice agent and automation developer. I build AI receptionists, appointment setters, and calling agents with Vapi and Retell AI, then connect them to your calendar and CRM using n8n, Make, Zapier, and ElevenLabs voices. I work with clinics, home service companies, real estate teams, and sales teams who want fewer missed calls and faster lead follow-up. You get clear updates, tested call flows, and a setup you control. I usually reply within an hour. Message me with your use case, your tools, and your goal, and I will tell you the best way to build it.
FAQ
What is an AI calling agent?
An AI calling agent is a voice-based AI system that can handle inbound or outbound conversations, ask questions, collect information and perform predefined business tasks.
Can you build an AI cold calling agent?
Yes. I can configure an AI cold calling workflow with a custom script, qualification questions and appropriate follow-up actions, subject to the selected platform and applicable calling requirements.
Can the AI calling agent qualify leads?
Yes. The agent can ask predefined questions, collect lead information and categorize prospects according to your qualification criteria.
Can the AI agent book appointments?
Yes. Appointment booking can be included when the selected calendar or scheduling platform supports the required integration.
Can you build outbound calling workflows?
Yes. I can help configure outbound AI calling workflows using supported platforms such as Vapi or Retell AI.
Can you integrate GoHighLevel?
Yes. I can connect the AI calling agent with GoHighLevel for supported CRM updates, lead capture, follow-ups and automation.
Can you connect the agent to n8n, Make or Zapier?
Yes. I can integrate your AI calling workflow with n8n, Make.com or Zapier to automate lead processing, notifications, CRM updates and other supported tasks
Can the AI calling agent transfer calls to a human?
Yes. Human handover can be configured for specific situations, such as qualified leads, complex questions or requests to speak with a team member.
