Actions25
Call → Create Phone Call
AI-generatedSummary
Starts a RetellAI phone call from an owned number to a destination number. You can optionally choose an agent override and pass key-value dynamic variables for the agent.
Inputs
- From Number (required) — Select an owned phone number or provide one using an expression. The value must be in E.164 format.
- To Number (required) — Destination phone number in E.164 format.
- Override Agent ID — Agent to use instead of the agent bound to the selected phone number. Leave blank to use the bound agent.
- Override Agent Version — Shown when an Override Agent ID is set. Accepts a numeric version, latest_published, latest, or a version tag. Numeric text is sent as a number; other values are sent as text. Blank leaves the version unspecified.
- Dynamic Variables — Optional key-value pairs passed as the call's Retell LLM dynamic variables. Each key and value is entered as text.
Output shape
A single call response record per input item.
Sends a POST request to RetellAI's /v2/create-phone-call endpoint and returns its response. Both phone numbers are validated against E.164 format; invalid values raise an error. If the workflow is set to continue on fail, an error item is returned for that input instead.