Create a 4G Trunk

For 4G LTE module, you need to install in the specific module slot as the following table shows:

PBX Model 4G Module (For Cellular Data) 4G Module (For Audio Calls)
S412 T_Slot3 T_Slot3 or T_Slot4
S20 Slot1 Any slot
S50 Slot1 Any slot
S100 Slot1 on Expand Board 1 Any slot
S300 Slot1 on Expand Board 1 Any slot
  1. Install 4G module.
    1. Power off the PBX.
    2. Open the upper case of the PBX.
    3. Place the 4G 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 4G 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. If you want to use cellular network of 4G module, click Advanced tab, configure the Mode.
    • Voice and Data: can be used for both voice call and data access.
    • Voice Only: can be used only for voice call.
  5. Configure other GSM/3G/4G Trunk Settings as your need.
  6. Click Save and Apply.