Short Message Peer-to-Peer (SMPP) in the telecommunications industry is an open, industry standard protocol designed to provide a flexible data communication interface for the transfer of short message data between External Short Messaging Entities (ESMEs), Routing Entities (REs) and SMSC.
SMPP is used by clients to connected to a SMSC (Short Message Service Centre). In SMPP terms, the client is called ESME (Extended Short Message Entity). SMSC's can also exchange data using a SMPP connection. Messages Send to a SMSC are called MT (Mobile Terminated) messages, because they are sent to a mobile phone.
SMPP can be utilized for the accompanying applications:
Highly scalable and secure key solution for SMS service providers
Highly compatible and secure key solution for SMS service providers
Scalable and manageable inbound SMPP client services.
SMPP API is an open, efficient & high protocol for sending text SMS.