/**
 * Allows the agent to play DTMF tones during a phone call.
 *
 * This tool can be used to interact with automated phone systems, such as
 * navigating phone menus, entering extensions, or inputting numeric codes.
 */
export interface PlayDtmfToolConfig {
    /** Send DTMF tones as out-of-band RTP events (RFC 4733) instead of in-band audio. Only effective for SIP trunk imported numbers. */
    useOutOfBandDtmf?: boolean;
    /** If true, the agent will not generate further speech after playing DTMF tones. This prevents the agent's speech from interfering with IVR systems. */
    suppressTurnAfterDtmf?: boolean;
}