TripleTen uses an AI voice agent to call every prospective student
In plain words
Coding bootcamp TripleTen couldn't keep up with summer inquiries, so an AI agent called Charlotte now calls them.
What happened: Showing a branded caller name got 20% more people to pick up and sign up.
Source: retellai.com ↗
How to do it yourself
Our suggested steps. The company didn't publish theirs.
- 1
Measure how long new inquiries wait for a call.
- 2
Write down the facts the agent needs: hours, prices, policies, when to hand off.
- 3
Set up Retell AI voice agent, connect your calendar/CRM and paste the prompt below.
- 4
Call it 20 times yourself as different customers and fix the script.
- 5
Start with after-hours or overflow calls, then widen once it's reliable.
The instructions to give the AI
Paste this into Retell AI (the free plan is fine), swap the [brackets] for your details, and test it on a few real examples.
This is one part of the setup. It won't connect to your phone, inbox or other apps on its own; the steps above cover that.
Agent instructions (prompt)
You are [name] from [school] admissions, calling [lead] who asked about [program]. Ask about their goals, experience and timing. Answer questions from the program FAQ. If they're a good fit, book a call with an advisor.
[Highlighted] = replace with your own details before you run it.
What you should get back: "Hi Sam, it's Charlotte from TripleTen — you asked about the coding bootcamp. What are you hoping to switch into?"
Written by Quickly and Good, inspired by this case.
More detail: tools, prices and what you'll need
The company used: Retell AI voice agent
You could use: Retell AI voice agent
- Retell AI
Phone voice agents that answer and make calls, book appointments and transfer.
Pay as you go, $0.07-$0.31/min; $10 free credit · Official site ↗
Prices from each tool's own pricing page, checked Oct 2026.
What you'll need
- ☐A phone number the agent can answer (from the voice platform or Twilio)
- ☐A voice-agent platform (e.g. Retell AI, Vapi or Synthflow)
- ☐Connection to your calendar or job system so it can actually book
- ☐A knowledge base: services, prices, hours, service area, FAQs
- ☐The agent instructions (prompt) and a call script
- ☐20+ test calls, including angry, confused and off-topic callers
- ☐Transfer to a human for emergencies and anything it is unsure about
- ☐Call-recording/AI disclosure that meets local rules
Can I do this myself?
Possible if you are comfortable wiring tools together and testing for a week or two. If not, hire a builder: most owners do.
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