Why this library is too much sensitive ?

[dotsinspace]

I am getting DLR only if there are no pdu command status other than 0, like

-> Bind Should be successful ( there should be no pdu with command status !== 0 if there are any pdu with command status 13 which might be caused by double click on dashboard ) then node-smpp will do weird behaviour where DLR will not going to be returned from server side.