Yealink T2 Series IP Phones User Guide98You can set a line key as a BLF key on the phone to use the BLF feature.TopicsSetting a BLF KeyState Indicator of Remote Line by BLF KeyAudio Alert for Monitored LinesVisual Alert for Monitored LinesPicking up a Remote Call by BLF KeyTransferring a Call by BLF KeyParking or Retrieving a Call by BLF KeySetting a BLF KeyYou can set a BLF key to monitor a specific line for status changes on the phone.Procedure1. Navigate to Menu->Features->Dsskey.2. Select the desired line key.3. Select BLF from the Type field.4. Select the desired line from the Account ID field.5. Do one of the following:l (Optional.) Enter the string that will display on the phone screen in the Label field.Enter the phone number or the extension you want to monitor in the Value field.l For the SIP-T29G IP phones, highlight the Label or Value field. Press Directory (Dir) and then select the desiredcontact from the Directory list(s).For the SIP-T48S/T48G IP phones, tap , and then tap the desired contact.