Voice agent webhooks: real time events for your stack
Voice agent webhooks send a real time notification to an endpoint you control whenever something happens, a call completes, a lead status changes, or a meeting gets booked, letting you build custom logic on top of that event instead of polling for updates.
Common events that trigger a webhook
Typical webhook events include a lead status change, like moving to hot or failed, a call completing with its outcome and transcript, and a new booking being created, giving downstream systems everything they need to react immediately.
Why event driven beats polling
Rather than repeatedly checking an API for changes, a webhook pushes data to you the moment something happens, which reduces both the delay in your own systems reacting and the unnecessary load of constant polling.
Common uses for webhook data
Businesses commonly use webhooks to sync call outcomes into a CRM, trigger a Slack notification on a hot lead, or kick off custom internal workflows the moment a meeting is booked, without needing to build any of that logic inside the calling platform itself.
Frequently asked
Most platforms send a structured JSON payload with details about the event, making it straightforward to parse in whatever backend language you're using.
More in Technical
A voice agent system is typically built from a few connected layers, a telephony layer that handles the actual phone connection, a speech processing layer that converts audio to text and back, and a language model layer that decides what to say.
Voice AI architecture generally follows a pipeline, speech to text converts what's said into text, a language model decides on a response, and text to speech converts that response back into audio, all repeated for each turn of the conversation.
A voice agent API generally lets you send leads into a calling campaign programmatically, trigger and manage campaigns through code, and pull call data, transcripts, and outcomes back into your own systems on demand.
See webhook events fire on a live call.
We'll walk through a technical demo in a 15 minute session.
