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Deploying runs your agent so it can take real calls.
Commit first. A deployment always uses a committed version, so uncommitted draft changes are never deployed. See Drafts and commits.
The Deploy button is enabled only after you commit your changes. While the branch has uncommitted changes, it stays disabled.
Select Deploy in the builder header to open the deployment settings. The button is disabled when:
  • The branch has uncommitted changes: “Please commit changes before deploy.”
  • The latest commit is already deployed.
To change the settings of a deployment that’s already live, without committing anything new, open the branch’s ⋮ menu on the Branches tab and select Edit Deployment.

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Basic settings

Deployment settings panel with deployment name, project, region, CPU profile, session limits, traffic split, reserved capacity, and monitoring options
The panel is titled Deploy Agent on the first deploy, and Edit Deployment after that.

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Branch traffic split

Turn on Branch Traffic Split to send live calls to more than one branch by percentage, for example 90% Main and 10% a test branch.
  • Add branches with Add Branch. Main can’t be removed.
  • The percentages must add up to 100%.
  • With the split off, Main receives all traffic.
When traffic is split, only languages configured in every branch with traffic are deployed. If the branches share no languages, you can’t deploy.

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Reserved capacity slots

Turn on Reserved Capacity Slots to keep a minimum number of agent instances running at set times, for example during business hours.
  • Choose a Timezone.
  • Add Slots, each with a name, day, start time, end time, and Minimum Replicas.
  • Add Overrides to replace the schedule on specific dates or date ranges, such as holidays or launch days. Leave the times blank to cover the whole day.

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Monitoring

Choose what to collect from each session: Recording, Transcripts, Traces, and Logs, plus optional Redaction of sensitive data. See Observability for what each option collects and where to view it.

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Deploy

Select Deploy Agent, or Update Deployment for an existing deployment. The deployment then appears on the Deployments page.

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Test your agent

The Preview panel on the right of the builder lets you call your agent from the browser, without a phone.
The agent must be deployed at least once before you can test it, even when testing the current draft.
1

Choose a version

Under Test Version, choose:
  • Current Draft: includes your uncommitted changes.
  • Last Deployed: the version that’s live on this branch.
2

Call

Select Start Test Call and allow microphone access.
3

Talk

Speak to the agent. Select End Call when you’re done.
The test call uses the language currently selected in the builder, and each variable’s Preview Value. Select Expand Preview (or press F) for the full-screen view, and Esc to collapse it. During the call you can see:
  • The live transcript, including tool calls and the knowledge chunks retrieved for each turn.
  • The configuration being tested: models, language, voice, turn detection, VAD, and system prompt.
  • Per-turn latency for speech-to-text, end of turn, LLM, time to first byte, and text-to-speech.
To test over the phone, connect a number with a routing rule.