Kannel Box that acts as SMPP Server
OpenSMPPBox is a special Kannel box that listens for smpp connections and accepts and sends sms messages from and to smpp clients. OpenSMPPBox behaves similar to other Kannel boxes and share a compatible configuration file format and command line options. After starting opensmppbox, a new connection to bearerbox is made for each smpp client that is connecting. This (new) connection with it's own 'smsbox-id' is dedicated to sending and receiving messages for this particular smpp client.