Create a PSTN Trunk

To have PSTN trunk in the PBX, you need to install the O2 module or SO module.

  1. Power off the PBX.
  2. Open the upper case of the PBX.
  3. Place the O2 module or SO module above the main board, slowly insert each pin into right slot.
  4. Log in the PBX web interface, go to Settings > PBX > Trunks.

    You can see the installed PSTN trunk displays in the trunk list.

  5. Click , edit the PSTN trunk Name.

  6. Configure other PSTN trunk settings as your need.
  7. Click Save and Apply.