The port used by an SMS gateway depends on two main factors:

  1. Function of the Port: There are two main communication functions within an SMS gateway:

  • SMS Traffic (Sending/Receiving): This typically uses a different port.
  • Gateway Management: This refers to accessing the configuration interface of the gateway itself.
    1. Specific Gateway Model: Different SMS gateway models might use slightly different ports for each function.

    Here's a breakdown of typical ports used:

    • SMS Traffic (Sending/Receiving):

    • Most Common: This usually relies on a combination of ports depending on the specific protocol used. The most common protocols and their ports are:
      • SMPP (Short Message Peer-to-Peer Protocol): Port 2775 is the default for message traffic.
      • HTTP (Hypertext Transfer Protocol): Port 80 (standard HTTP) or 443 (secure HTTPS) might be used for sending/receiving SMS messages over HTTP APIs.
    • Less Common: Some gateways might use other protocols or non-standard ports for SMS traffic. Consult your gateway's manual for specific details.
    • Gateway Management:

      • Web Interface: Many gateways offer a web interface for configuration. This typically uses standard web ports like 80 (HTTP) or 443 (HTTPS).
      • Command-Line Interface (CLI): Some gateways might also offer a CLI for configuration, often using ports like 22 (SSH) or proprietary ports specific to the model.

    Here's what to do to find the exact ports used by your SMS gateway:

    • Refer to the Gateway Manual: The user manual for your specific SMS gateway model should have a dedicated section on network ports used for different functionalities.
    • Contact the Gateway Manufacturer: If you can't find the information in the manual, contact the manufacturer's support for clarification.

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