Yealink - Set BLF Manually

To set a BLF button on the devices panel:

1. Press and hold the button directly beside the phone display.

2. Type: BLF

3. Account ID: Line 1
4. Label:
5. Value: extension number, feature code or DDI

6. Extension: should stay blank

7. Press Save.

8. The BLF button can now be used for transfers or speed dials.

9. Red light - On a call

10. Red flashing - Ringing
11. Green light - Available