import flash.display.MovieClip;

 

  var numero: MovieClip = phone_number;

  phone_number.addEventListener(MouseEvent.CLICK,onPhone_Number);

  function onPhone_Number(e:MouseEvent):void {

        numero = phone_number;

}

 

trubka_btn.addEventListener(MouseEvent.CLICK,showClip);

apparat_btn.addEventListener(MouseEvent.CLICK, hideClip);

 

function showClip(e:MouseEvent):void {

        numero.visible = true;

}

 

function hideClip(e:MouseEvent):void {

        numero.visible = false;

}

//допустим кнопка будет называться btn

btn.addEventListener(MouseEvent.CLICK,showHide)

function showHide(e:MouseEvent):void{

    numero.visible = !numero.visible;

}