alt wrote:Please try last version
http://www.inetlab.ru/Download/SmppClient.zip

Thanks! Its working.

But i encountered next problem - SmppClient.SubmitText send field registered_delivery always set to 0. This method doesn't usable with lazy quering of messages delivery, isn't it?

This code try { QuerySmResp resp = client.Query(id, SRC_TON, SRC_NPI, SRC_ADDR); } catch (Exception e) { AddToLog(e.Message); AddToLog(e.StackTrace); } called with small timeout after SubmitText (when QUERY_SM_RESP cotains null in field final_date ), generates that exception Unhandled Exception: Sys...