I've located a problem while sending a large quantity of SMS messages when I am connected to SMPP server via SSL connection.
Error occurs in the demo app if you do the following:

1. Connect to SMPP server via SSL connection
2. Use "Bulk async submit"
3. Change the Balk function, because I want to ...

Update of DeliverSM function has a bug. I'm sending SMS with the method SubmitAsynch to an invalid number, server rejects the message and the client should get status Rejected. It was working correctly in the previous versions, but now it throws Invalid DELIVER_SM packet. Delivery reports are still ...