enquire_link requests issued by both the server and client to keep the SMPP session alive.deliver_sm requests issued by the server to forward messages from the mobile phone to the client, including delivery receipts.submit_sm requests issued by the client to send messages to a mobile phone.bind request to establish the SMPP session.We will be using Node.js node-smpp for the implementation. Meaning that requests can be issued without having to wait first for responses to earlier requests to be received.

Requests are processed asynchronously.

Requests can be issued by the SMPP client as well as the SMPP server.There is not the connection overhead to be found with protocols such as HTTP that use transient connections. Connections established by the client with the server are persistent and may be kept open indefinitely.SMPP is particularly suited to high-volume and high-throughput SMS applications. This tutorial will help you to send SMS messages using your own SMSC gateway. ESME is the system that delivers SMS to SMSC. SMSC acts as middleman to store the message and route it. It exchanges SMS messages between (SMSC) and ESME. SMPP (Short Message Peer-to-Peer) is a protocol used by the telecommunications industry.

Sms js