BLF LED mode on T46

[Flora_Yealink]

Hi,
1. For the difference between BLF mode options, plesae refer to below guide. "BLF LED Mode" in page 305
Yealink_SIP-T4X_IP_Phones_Administrator_Guide_V73_40.pdf

2. BLF key will turn red when the monitor phone is on DND, whether the feature can be supported is mostly decided by the server side. As you known, the statues of the BLF key is controlled by the Notify message sent from the server. In this case, when the monitor extension enabled the DND button just like the monitor extension is busy states, so if the server can send the Notify message which include the states just as the extension are in the call, the BLF key will show red .
Best Regards!
Flora