InetLab 

.NET implementation of SMPP protocol v.3.4 and v.5.0. This library can help to communicate with SMSC, send and receive SMS messages. It allows to create SMPP server.

Inetlab.MMS.MM7 features: * Sends and receives MMS messages via HTTP based MM7 protocol * Extracts video and audio information from a message * Allows sending MMS from a SMIL (Synchronized Multimedia Integration Language) file * Server-side application works as a standalone HTTP... More information