Meta Ads + GHL + Voice AI = 💰. What Worked

Hey guys, thought I’d share a quick case study from one of the voice AI builds I’ve been working on. Hopefully it helps anyone in here who’s building out voice AI flows or starting their own agency. This one’s been running for a little while now and the results have been solid, so figured it was worth sharing.

Client came in after seeing one of my demos in a community (seriously, communities are low-key goldmines for lead gen...shhhh 🤫). It’s a US-based service business running Meta ads with five different offerings. Their audience is a mix of English and Spanish speakers, and they’re dealing with warm leads, not cold ones. People are actively filling out surveys and expecting a follow-up.

The problem? Their human agents were drowning in other tasks and just couldn’t keep up with outbound outreach. Good leads were going cold fast.

The Solution

We trained a voice AI agent on their business and set it up to call leads around 5 minutes after opt-in. On top of that, we built a fully loaded follow-up system that spans the first 5 days post-opt-in.

It supports both English and Spanish. Fun fact: Spanish-speaking leads picked up more than the English ones. No idea why, but hey, we’ll take the win.

What Worked

Keep it simple: the agent handled FAQs and booking only. Anything beyond that? It politely said a team member would follow up
Voice AI alone is good, but combining it with AI SMS is where the magic happens. Multi-channel follow-up is king! Some people just prefer texting.
Sending a quick SMS like “one of our reps will be in touch shortly” before the call boosted pickup rates
Most people didn’t even realise they were speaking to AI, and when asked, it told them straight up
Yes, AI can call 24/7, but let’s not get creepy. People sleep. Just because your agent doesn’t need sleep doesn’t mean your lead wants to chat at 3am 😕
Real talk: no matter how solid your flow is, the first 4 weeks will humble you 😅. One weird conversation and boom, time to rework your prompt.
Train your AI to detect voicemail and hang up! saves you couple bucks but trust me, it adds up.
We also added an appointment reminder voice agent that follows up 2 days before and on the day of the appointment. It carries context and helps confirm or reschedule as needed. This boosted appt show up rates

Results

Day one of launching the voice AI, we started seeing bookings. We’ve had a 33% boost in conversion rates since putting this system in place.

If you know anyone running ads, a mix of voice AI and chat AI is honestly one of the strongest offers you can bring to the table right now. Immediate value. No months of waiting to prove it works.

Disclaimer: The Vapi screenshot includes calls from a mix of setups, not just this one.

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