Voice AI + Zapier and Make: automate phone calls without writing a backend
Trigger AI phone calls from any app, and pipe call outcomes anywhere — Sheets, CRM, Slack — using Zapier or Make. No server required. Here's the exact setup.
You don't need a backend to put AI phone calls inside your business workflows. If you already live in Zapier or Make, you can trigger a call from any app and route the outcome anywhere — in the visual editor, no code.
There are two directions, and you'll usually want both.
$5 in credits, no card. Create an agent, grab your API key, and wire the first zap in minutes.
Direction 1 — trigger a call from any app
New lead in your CRM? Form submission? Row added to a sheet? Make the agent call them. In Zapier this is one step: Webhooks by Zapier → POST.
URL: https://api.call2me.app/v1/calls
Method: POST
Headers: Authorization: Bearer YOUR_API_KEY
Data:
to_number: [lead phone from trigger step]
agent_id: your_agent_id
context: "Lead from [source], interested in [product]"
That's the whole thing. The context field is how you personalize the call —
the agent gets it as background and speaks to it. New Typeform response →
instant AI follow-up call, no server in between.
In Make, it's the same with the HTTP → Make a request module.
Direction 2 — route the outcome anywhere
After the call, Call2Me POSTs the result (transcript, outcome, any extracted fields) to a webhook. Point that webhook at a Zapier Catch Hook or a Make custom webhook, and the call result becomes a trigger you can fan out:
- → HubSpot / Pipedrive: log the call, update the deal stage.
- → Google Sheets: append a row with the transcript and outcome.
- → Slack: post "☎️ AI called [name] — [outcome]" to your team channel.
- → Email: send the booking confirmation.
The payload is signed, so verify the signature on the way in (here's how) before you trust it.
A complete loop, no code
Put both directions together and you get a closed loop that runs itself:
- Trigger: New row in "Call list" sheet → Zapier POSTs to Call2Me.
- Call: The agent calls, has the conversation, extracts the result.
- Route: Post-call webhook → Zapier → writes outcome back to the sheet and pings Slack.
Bulk version of this? Drop the list into a campaign and let it dial the whole sheet — same agent, same outcome routing.
Why this beats "AI calling" tools locked in their own UI
A lot of voice tools make you live inside their dashboard. The point of the Zapier/Make route is the opposite: the call becomes one node in a workflow you already own, next to your CRM, your sheets, your Slack. The voice agent is infrastructure, not another app to log into.
Grab an API key and trigger a real call from a zap in the next ten minutes. Free to try — $5 in credits, no card.
Booking appointments specifically? The same webhook pattern drops straight into Google Calendar — check availability, book the slot, confirm.
Frequently asked
Q.Do I need a developer for this?
No. Both directions — triggering a call and handling the result — are plain HTTP. Zapier's 'Webhooks by Zapier' and Make's 'HTTP' module call the Call2Me API directly, so you build the whole flow in the visual editor.
Q.Can I pipe the call transcript into my CRM?
Yes. Point Call2Me's post-call webhook at a Zapier/Make catch hook, and you get the transcript, outcome, and any extracted fields as a trigger you can route into HubSpot, Sheets, Slack, or anything else in the catalog.
Q.Zapier or Make — which should I use?
Make is cheaper at volume and better for branching logic; Zapier has the bigger app catalog and is simpler for one-to-one zaps. The Call2Me side is identical for both — it's just an HTTP call out and a webhook back.
Keep reading
All posts- Integrations
Connect a voice AI agent to Google Calendar (real booking, not a demo)
Let your phone agent check availability and book appointments straight into Google Calendar. Here's the function-call + webhook pattern that actually works in production.
Jun 1, 20263 min 
GuideAI call center: how voice AI replaces traditional call centers
Traditional call centers cost $25–$65 per agent-hour and suffer 30–45% annual turnover. Voice AI handles routine calls at $0.10–0.30 per minute with zero training time. Here's a practical migration path.
May 26, 202610 min
ComparisonThe Bland AI alternative for teams who want to own their stack
Bland is fast and polished. But if you want a built-in knowledge base, white-label, and pricing you can read without a spreadsheet, here's the honest comparison.
May 31, 20264 min