# SMPP

## SMPP

We also provide an SMPP interface for high-volume users. SMPP is available on the canonical port 2775. An encrypted, secure connection is also provided over TLS (1.1 or 1.2) on port 2776.

We highly recommend you connect via TLS in order to securely transport your messages to us. The normal, non-TLS connection is provided mainly for legacy backwards compatibility reasons.

## Authentication <a href="#authentication" id="authentication"></a>

{% hint style="info" %}
Authentication is done by SMPP credentials you received from TSG team or can be found in the customer portal.&#x20;
{% endhint %}


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