export type DesktopSms = {
    /**
     * Phone number to prefill in the RingCentral desktop SMS composer.
     *
     * @example '15551234567'
     */
    phoneNumber: string;
    /**
     * Text to prefill in the RingCentral desktop SMS composer.
     *
     * @example 'Hello from Protocol Launcher'
     */
    content?: string;
} | {
    phoneNumber?: undefined;
    content?: undefined;
};
/**
 * Open the RingCentral SMS composer.
 *
 * @param payload RingCentral desktop SMS payload.
 * @returns RingCentral desktop SMS deep link.
 * @example
 * desktopSms()
 * // => '/r/sms?type=new'
 * @example
 * desktopSms({ phoneNumber: '15551234567', content: 'Hello from Protocol Launcher' })
 * // => '/r/sms?type=new&number=15551234567&content=Hello%20from%20Protocol%20Launcher'
 * @link https://developers.ringcentral.com/guide/basics/uri-schemes
 */
export declare function desktopSms(payload?: DesktopSms): string;