Monitor Extension Status by BLF Key

This topic describes how to configure a BLF key for auto-provisioned IP phone on PBX web portal, so as to monitor the call status and DND (Do Not Disturb) presence status of a specific extension.


The phone is connected to Yeastar P-Series Software Edition via Auto Provisioning, and has been assigned an extension.

For more information, see the following topics:


Step 1. Set up a function key for extension monitoring

  1. Log in to PBX web portal, go to Extension and Trunk > Extension, edit the extension that is assigned to the phone.
  2. Click the Function Keys tab.
  3. Configure a function key to monitor the status of an extension.

    The following figure shows a configuration example of monitoring extension 1004.

    • Type: Select BLF.
    • Value: In the drop-down list, select an extension to monitor. In this example, select 1004.
    • Label: Optional. Enter a value, which will be displayed on the phone screen.
  4. Click Save.

Step 2. Apply the configuration to the IP phone

  1. Go to Auto Provisioning > Phones, click beside the desired phone.

    The system prompts you whether to reprovision the phone.

  2. In the pop-up window, click OK.


  • The LED of the BLF key shows the real-time status of extension 1004:
    • Solid Green: The extension is being monitored, and the status is idle.
    • Solid Red: The extension is sending a call or is in a call; or the extension presence is DND (Do Not Disturb).
      Note: For Fanvil IP phones that support differentiated DND status indication, the DND status is indicated by a Solid Yellow LED light. For more information regarding the supported phone models and firmware versions, contact your Fanvil IP phone provider.
    • Flashing Red: The extension is ringing.
    • LED off: The extension is not registered, or the extension has been deleted from the PBX system.
  • You can press the BLF key on the phone to achieve the followings:
    • Place a call to the monitored extension.
    • Pick up the monitored extension's incoming calls.
      Note: To achieve this, make sure that the Extension Pickup feature code is enabled (Path: Call Features > Feature Code > Call Pickup > Extension Pickup).