jSMPP is the only comprehensive Java implementation of SMPP, the industry standard for mobile SMS messaging.
jSMPP is free software licensed under the Apache 2 license.
Source code, issue tracking and community collaboration takes place on our Github project page.
The best way to start using jSMPP is often with a high-level messaging framework. Apache Camel is a popular choice for many jSMPP users. The popular SMS Router project is a daemon/server process that moves messages between message queues (JMS) and SMPP, based on Camel and jSMPP.