SMPP Gateway is preferred for high volume SMS traffic between ESME and SMPP server. SMS termination through SMPP gateway requires one SMPP client at your application end to connect with remote SMPP Gateway. Our technical team can help you with necessary integration in your existing application on how to leverage SMPP gateway. The Short Message Peer-to-Peer (SMPP) is a protocol used by the telecommunications industry for exchanging SMS messages between Short Message Service Centers (SMSC) and/or External Short Messaging Entities (ESME). The protocol is a level-7 TCP/IP protocol, which allows fast delivery of SMS messages.