import type { Transport } from "../transport";
export type TwilioOutboundTransportOptions = {
    /** Twilio Account SID (starts with `AC...`). Env: `TWILIO_ACCOUNT_SID`. */
    accountSid: string;
    /** Twilio Auth Token. Env: `TWILIO_AUTH_TOKEN`. */
    authToken: string;
    /** E.164 number to call FROM — must be a voice-capable number on your Twilio account. */
    from: string;
    /** E.164 number to call TO — the bot you want to test. */
    to: string;
    /**
     * Public HTTPS URL Twilio can reach to fetch TwiML + open the Media
     * Stream. The transport hosts a local server; this URL must proxy to it.
     * Examples: `https://abc.ngrok.io`, `https://your-app.fly.dev`,
     * `https://<tunnel-id>.absolutejs.io` (AbsoluteJS built-in tunnel).
     * No trailing slash.
     */
    publicUrl: string;
    /** Local port to bind the TwiML + WS server. Default 3344. */
    port?: number;
    /** Twilio REST API base URL (override only for testing). */
    apiBaseUrl?: string;
    /** Optional: enable Twilio call recording (separate from voice-tester's STT). */
    recordCall?: boolean;
};
/**
 * Bring up the local TwiML+WS server, POST to Twilio to originate the
 * outbound call, and resolve a Transport once Twilio opens the Media Stream
 * and sends its `start` event. The transport's `ready` promise covers that
 * full handshake.
 */
export declare const twilioOutboundTransport: (options: TwilioOutboundTransportOptions) => Promise<Transport>;
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