func (sm *FSSessionManager) onChannelPark(ev engine.Event, connId string) {
	fsev := ev.(FSEvent)
	if ev.GetReqType(utils.META_DEFAULT) == utils.META_NONE || fsev[IGNOREPARK] == "true" { // Do not process this request
		return
	}
	var maxCallDuration float64 // This will be the maximum duration this channel will be allowed to last
	if err := sm.rater.GetDerivedMaxSessionTime(ev.AsStoredCdr(config.CgrConfig().DefaultTimezone), &maxCallDuration); err != nil {
		utils.Logger.Err(fmt.Sprintf("<SM-FreeSWITCH> Could not get max session time for %s, error: %s", ev.GetUUID(), err.Error()))
	}
	if maxCallDuration != -1 { // For calls different than unlimited, set limits
		maxCallDur := time.Duration(maxCallDuration)
		if maxCallDur <= sm.cfg.MinCallDuration {
			//utils.Logger.Info(fmt.Sprintf("Not enough credit for trasferring the call %s for %s.", ev.GetUUID(), cd.GetKey(cd.Subject)))
			sm.unparkCall(ev.GetUUID(), connId, ev.GetCallDestNr(utils.META_DEFAULT), INSUFFICIENT_FUNDS)
			return
		}
		sm.setMaxCallDuration(ev.GetUUID(), connId, maxCallDur)
	}
	// ComputeLcr
	if ev.ComputeLcr() {
		cd, err := fsev.AsCallDescriptor()
		if err != nil {
			utils.Logger.Info(fmt.Sprintf("<SM-FreeSWITCH> LCR_PREPROCESS_ERROR: %s", err.Error()))
			sm.unparkCall(ev.GetUUID(), connId, ev.GetCallDestNr(utils.META_DEFAULT), SYSTEM_ERROR)
			return
		}
		var lcr engine.LCRCost
		if err = sm.Rater().GetLCR(&engine.AttrGetLcr{CallDescriptor: cd}, &lcr); err != nil {
			utils.Logger.Info(fmt.Sprintf("<SM-FreeSWITCH> LCR_API_ERROR: %s", err.Error()))
			sm.unparkCall(ev.GetUUID(), connId, ev.GetCallDestNr(utils.META_DEFAULT), SYSTEM_ERROR)
		}
		if lcr.HasErrors() {
			lcr.LogErrors()
			sm.unparkCall(ev.GetUUID(), connId, ev.GetCallDestNr(utils.META_DEFAULT), SYSTEM_ERROR)
			return
		}
		if supps, err := lcr.SuppliersSlice(); err != nil {
			utils.Logger.Info(fmt.Sprintf("<SM-FreeSWITCH> LCR_ERROR: %s", err.Error()))
			sm.unparkCall(ev.GetUUID(), connId, ev.GetCallDestNr(utils.META_DEFAULT), SYSTEM_ERROR)
			return
		} else {
			fsArray := SliceAsFsArray(supps)
			if _, err = sm.conns[connId].SendApiCmd(fmt.Sprintf("uuid_setvar %s %s %s\n\n", ev.GetUUID(), utils.CGR_SUPPLIERS, fsArray)); err != nil {
				utils.Logger.Info(fmt.Sprintf("<SM-FreeSWITCH> LCR_ERROR: %s", err.Error()))
				sm.unparkCall(ev.GetUUID(), connId, ev.GetCallDestNr(utils.META_DEFAULT), SYSTEM_ERROR)
			}
		}
	}
	sm.unparkCall(ev.GetUUID(), connId, ev.GetCallDestNr(utils.META_DEFAULT), AUTH_OK)
}
// Disconnects a session by sending hangup command to freeswitch
func (sm *FSSessionManager) DisconnectSession(ev engine.Event, connId, notify string) error {
	if _, err := sm.conns[connId].SendApiCmd(fmt.Sprintf("uuid_setvar %s cgr_notify %s\n\n", ev.GetUUID(), notify)); err != nil {
		utils.Logger.Err(fmt.Sprintf("<SM-FreeSWITCH> Could not send disconect api notification to freeswitch, error: <%s>, connId: %s", err.Error(), connId))
		return err
	}
	if notify == INSUFFICIENT_FUNDS {
		if len(sm.cfg.EmptyBalanceContext) != 0 {
			if _, err := sm.conns[connId].SendApiCmd(fmt.Sprintf("uuid_transfer %s %s %s\n\n", ev.GetUUID(), ev.GetCallDestNr(utils.META_DEFAULT), sm.cfg.EmptyBalanceContext)); err != nil {
				utils.Logger.Err(fmt.Sprintf("<SM-FreeSWITCH> Could not transfer the call to empty balance context, error: <%s>, connId: %s", err.Error(), connId))
				return err
			}
			return nil
		} else if len(sm.cfg.EmptyBalanceAnnFile) != 0 {
			if _, err := sm.conns[connId].SendApiCmd(fmt.Sprintf("uuid_broadcast %s playback!manager_request::%s aleg\n\n", ev.GetUUID(), sm.cfg.EmptyBalanceAnnFile)); err != nil {
				utils.Logger.Err(fmt.Sprintf("<SM-FreeSWITCH> Could not send uuid_broadcast to freeswitch, error: <%s>, connId: %s", err.Error(), connId))
				return err
			}
			return nil
		}
	}
	if err := sm.conns[connId].SendMsgCmd(ev.GetUUID(), map[string]string{"call-command": "hangup", "hangup-cause": "MANAGER_REQUEST"}); err != nil {
		utils.Logger.Err(fmt.Sprintf("<SM-FreeSWITCH> Could not send disconect msg to freeswitch, error: <%s>, connId: %s", err.Error(), connId))
		return err
	}
	return nil
}