import { EventEmitter } from "node:events";
import { VoIPEvents, VoIP } from "../../../interfaces/voip/voip.js";
import { Message } from "../../../interfaces/message/message.js";
import twilio from "twilio";
import { TranscriptStatus, TwilioMetadata } from "./types.js";
import { WebSocketListener } from "./twilio_gateway.js";
import { UUID } from "node:crypto";
export interface TwilioVoIPOptions {
    metadata: TwilioMetadata;
    accountSid: string;
    authToken: string;
    recordingStatusURL: URL;
    transcriptStatusURL: URL;
}
export declare class TwilioVoIP extends EventEmitter<VoIPEvents<TwilioMetadata, TranscriptStatus>> implements VoIP<TwilioMetadata, TranscriptStatus, VoIPEvents<TwilioMetadata, TranscriptStatus>> {
    protected metadata: TwilioMetadata;
    protected listener?: WebSocketListener;
    protected client: twilio.Twilio;
    protected recordingStatusURL: URL;
    protected transcriptStatusURL: URL;
    protected recordingId?: string;
    protected activeMessages: Set<UUID>;
    constructor({ metadata, accountSid, authToken, recordingStatusURL, transcriptStatusURL }: TwilioVoIPOptions);
    setWebSocketListener: (webSocketListener: WebSocketListener) => void;
    protected updateMetadata: (metadata: TwilioMetadata) => void;
    post: (message: Message) => void;
    abort: (uuid: UUID) => void;
    protected deleteActiveMessage: (uuid: UUID) => void;
    transferTo: (tel: string) => void;
    hangup: () => void;
    startTranscript: () => Promise<void>;
    startRecording: () => Promise<void>;
    stopRecording: () => Promise<void>;
    removeRecording: () => Promise<void>;
    dispose: () => void;
}