Create a GSM/3G Trunk

To create a GSM/3G trunk on your PBX, you need to install the relevant module.

  1. Install GSM/3G module.
    1. Power off the PBX.
    2. Open the upper case of the PBX.
    3. Place the GSM/3G module above the main board, slowly insert each pin into right slot.
  2. Log in the PBX web interface, go to PBX Monitor > Trunks to check the trunk status.

    If the trunk status shows the signal icon , or , the trunk is ready for use. For more information on trunk status, see GSM/3G Trunk Status.

  3. Go to Settings > PBX > Trunks, configure the basic settings of the 4G trunk.
    • Name: Give this trunk a name to help you identify it.
    • PIN Code: Enter the SIM card PIN code if the card has one.
    • RX Volume: Set the receiving volume of GSM port or choose Custom to define the RX Gain below.
    • TX Volume: Set the transmitting volume of GSM port or choose Custom to define the TX Gain below.
  4. Configure other GSM/3G/4G trunk settings as your need.
  5. Click Save and Apply.