Kannel is a compact and very powerful open source WAP and SMS gateway, used widely across the globe both for serving millions of short messages (SMS) and pushing WAP service indications.
Kannel OpenSMPPBox (06/14/2010 10:29 PM)
Standalone smppbox, similar to sqlbox.
Kannel Documentation (05/05/2009 06:05 PM)
The Kannel project documentation
Kannel SQLbox (05/05/2009 06:05 PM)
Add-On module for handling messages directly within a dedicated RDBMS (ie. MySQL).
Kannel (05/05/2009 06:05 PM)
The Kannel Open Source WAP and SMS Gateway