Free online SMPP server
java, jsmpp, smpp, sms, smslib
Solution
I don't think there is an online server you can use. However you can test your application locally by installing SMC simulator Here is a free one.
Problem
I want to send and receive sms using jsmpp (or maybe smslib). I can send sms and get delivery report for my sms. But I cannot receive sms from SMSC. I downloaded Java SMPP Client application for receiving sms, but it didn't help. I want to test this software with online smpp server, if it receives sms from online server I will know that there is problem in provider, which gives me smpp gateway. Thanks..