Create a BRI Trunk

To create a BRI trunk, you need to install B2 module to PBX and connect the BRI port to the BRI provider with an RJ45-RJ11 cable.

  1. Install B2 module.
    1. Power off the PBX.
    2. Open the upper case of the PBX.
    3. Place the B2 module above the main board, slowly insert each pin into right slot.
  2. Connect one end of ISDN BRI cable to the BRI port on the PBX, and connect the other end of the cable to the ISDN provider equipment.
  3. Log in the PBX web interface, go to PBX Monitor > Trunks to check the trunk status.
    If the trunk status shows , the physical layer of this trunk is correct.
    If the trunk status shows , the physical layer of this trunk is incorrect, check the BRI cable or contact Yeastar support to solve it.
    For more information on trunk status, see BRI Trunk Status.
  4. Go to Settings > PBX > Trunks, configure the trunk parameters that affect the connection status.
    Note: Get the information from your BRI provider, and configure the following settings.
    • Name: Give this trunk a name to help you identify it.
    • Signaling: Specify the signaling type according to the direction provided by your service provider.
    • Signaling Role: Specify whether this interface will act like the user or the network.
    • Switch Type: Configure the switch type according to the direction provided by your service provider.
  5. Configure other BRI trunk settings as your need.
  6. Click Save and reboot the PBX to take effect.
  7. Go to PBX Monitor > Trunks to check the trunk status.
    If the trunk status shows , the trunk is ready for use.