Voice & SMS Automation
AI Calling Agent Development for Inbound Calls & Automated Lead Follow-Up
Every call that rings out unanswered is a lead qualifying itself for a competitor. I build AI calling agents — automated calling systems that answer inbound calls, hold a real voice conversation, qualify the caller, and follow up over SMS, so no inquiry goes cold outside business hours.
This is production AI voice agent development: real telephony (Twilio), natural voice synthesis (ElevenLabs), and OpenAI function calling driving the conversation logic — not a phone tree, an actual AI phone agent for lead follow-up.
AI Calling Agent — Production Voice & SMS System
Problem
Businesses were missing inbound calls and leads outside business hours, with no fast, consistent way to qualify every inquiry that came in.
Solution
Built a production voice and SMS AI agent that answers calls, holds natural conversations using ElevenLabs voice synthesis and OpenAI function calling, and follows up automatically over SMS — backed by a Django REST Framework API and a Next.js operations dashboard, with Twilio handling telephony.
Who This Is For
Built for Businesses Like Yours
Roofing & Home Services
Catch every missed call from a quote request or emergency job — proven in production.
Law Firms
Answer and pre-qualify intake calls before they reach your team, day or night.
Real Estate
Instant response to property inquiry calls, with automatic SMS follow-up on qualified leads.
Restaurants
Automated reservation confirmation calls and order-status follow-up.
Common Questions
Frequently Asked Questions
Can AI make outbound sales calls?
Yes — the same system that handles inbound calls can place outbound calls for follow-up, confirmations, or re-engaging leads that went cold, using the same natural voice and conversation logic.
Does the AI calling agent sound like a real person?
It uses ElevenLabs voice synthesis, which produces natural, human-sounding speech rather than the robotic text-to-speech most people associate with automated phone systems.
Can it send follow-up text messages after a call?
Yes — SMS follow-up is built into the same system. In production, this system alone has sent 3,334+ follow-up messages tied directly to call outcomes.
What happens if the AI can't answer a caller's question?
The agent is built to recognize when a request is outside what it can handle and route the caller to a human or flag it for follow-up, rather than guessing or leaving the caller stuck.
Does this work with my existing phone number?
Yes — it integrates with telephony providers like Twilio, so it can run on a new dedicated line or be configured to work with your existing business number depending on your setup.
Related Services
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