The Esaya Mobile Messaging Server is an easy-to-install server that runs as an SMPP (Short Message Peer to Peer) client to enable sending and receiving of SMS/EMS messages in multiple formats from your servers. You just install it and configure it to connect to your SMSC and can create messages using the Esaya Mobile Messaging SDK. It supports adding messages into it's queue of messages to be processed and can send messages of binary formats, including EMS, ring tones, etc and supports concatenated SMS for SMS text messages longer than 160 characters.

Since the Esaya Mobile Messaging Server is Java based, you can run it on Windows, Mac and POSIX compliant operating systems.