How SMPP works
An application connects to an SMSC via a bind (transmitter, receiver, or transceiver) and sends messages using PDUs (Protocol Data Units). The protocol supports batch sending, DLR (Delivery Receipt), long SMS, and user replies (MO).
Definition
SMPP (Short Message Peer-to-Peer) is an open, standardized communication protocol used to send and receive SMS between applications (ESME) and carrier message centers (SMSC). It is the industry standard for high volume and low latency.
SMPP vs. REST API
REST API is simpler to integrate and ideal for most use cases. SMPP is indicated for very high-volume operations, minimum latency, or legacy integrations that already use the protocol.
When to use SMPP
Use SMPP when you need very high throughput (thousands of messages per second), fine connection control, or direct integration with telecom infrastructure. For common transactional sends, REST API is sufficient.
Frequently asked questions
Does SMSGo offer SMPP?
Yes. Customers with high volume can request SMPP credentials for direct sending through our infrastructure.
Is SMPP faster than REST API?
In high-volume scenarios, yes. The persistent connection of SMPP reduces overhead, but for moderate volumes the difference is small.
Do I need a special library?
Yes. You need an SMPP library in your backend (Node.js, Java, Python, .NET, etc.). The integration is more technical than a REST API.
Does SMPP support receiving replies?
Yes, through receiver or transceiver binds. You can receive MO (Mobile Originated) and DLR (delivery status).
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