Creating SMPP SMSC Trunk

Step 1. Under the “Trunks” section, select the “SMS” tab, navigate to “Create New”, and click on “SMPP SMSC” (Fig. 1).


Fig. 1. Adding a new SMPP SMSC Trunk

Step 2. You will be prompted to enter your SMPP SMSC Trunk details (Fig. 2).


  • Friendly name – SMSC Trunk name to identify it on your DIDWW user panel.

  • System ID, System Type, and Password parameters are auto-generated. They can be replaced manually to your desired values and are used during authentication in SMPP binding.

  • Host – your SMSC server’s public IP address or domain.

  • Transceiver Mode – enable Tranceiver transaction mode, by default it is Transmitter mode.

  • TX Port – Transmitter or Transceiver port (depending on transactions type used).

  • RX Port – Receiver Port is used only when Transceiver mode enabled.

  • Connection Timeout – timeout value between TCP connection retries.


Fig. 2. SMSC Trunk details window

Source Address Settings

The Source Address Settings defines which DID number(s) may be used as a sender ID for the outbound SMS trunk. These DID numbers appear as the CLI to the recipient of the SMS. The “allowed” sender IDs may be selected from the available DID numbers acquired from DIDWW. A filter is provided to enable users to list specific DIDs. By default, all DID numbers with SMS OUT capability in the customer’s account may be used as the sender ID on outbound trunks (Fig. 3).


Fig. 3 Source address selection

Step 3. Click “Create” to complete trunk configuration.