/**
 * Initial Call Handler
 *
 * Handles POST /call — the first webhook when a call arrives.
 * Clears previous state, greets the caller, and starts listening for speech.
 */
import type { Context } from "hono";
import type { TalkerConfig } from "../../types";
export declare function handleInitialCall(c: Context, config: TalkerConfig): Promise<Response>;