An HTTP callback a platform sends to your system in real time, commonly used to deliver DLRs or inbound message events as POST/GET/JSON/XML.
Why Webhook Matters
Without a webhook, your system would have to keep asking a platform "has anything changed?" (polling), which is slow and wasteful. A webhook flips that: the platform pushes the event to you the moment it happens.
How Webhook Works
You register a URL on your own server. Whenever a relevant event occurs, such as a delivery receipt or an inbound message, the platform sends an HTTP request to that URL carrying the event data, typically as JSON.
How SMPPCenter Uses This
If you integrate with SMPPCenter over the REST API rather than a direct SMPP bind, webhooks are how you receive DLRs and inbound replies, sent as POST, GET, JSON, or XML depending on how you configure the endpoint.
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Client Feedback
What Our Clients Say
Our clients run regulated, high-volume messaging infrastructure and prefer not to be named publicly. These testimonials are shared with permission while keeping commercially sensitive details confidential.
We evaluated several messaging platforms before selecting SMPP Center. The deployment flexibility and API capabilities matched our enterprise requirements.
Excellent documentation, responsive technical support, and an enterprise-grade platform that scales as our business grows.
The migration was completed smoothly and the platform has remained stable under heavy production traffic. The flexibility of self-hosting was one of the biggest advantages for us.
We needed complete control over our messaging infrastructure instead of relying on a hosted provider. The platform has delivered excellent performance and reliability.
Names and company details are withheld at our clients' request. This is common among telecom providers, SMS aggregators, fintech companies, and enterprises that consider their messaging infrastructure commercially sensitive.