public static boolean canHangupHolding(CallManager cm) {
   // Because of CDMA no hold concept, so disable the holding menu
   // when there cdma active.
   if (DualTalkUtils.isEvdoDTSupport()) {
     DualTalkUtils dt = DualTalkUtils.getInstance();
     if (dt.isCDMAPhoneActive()) {
       return false;
     }
   }
   Call bgCall = cm.getFirstActiveBgCall();
   return bgCall.getState() != Call.State.IDLE;
 }