Advanced phone features, Busy lamp field (blf) – Yealink SIP-T28P User Manual
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Advanced Phone Features
109
This chapter provides operating instructions for the advanced features of the SIP-T28P IP
phone. Topics include:
Automatic Call Distribution (ACD)
If you require additional information or assistance with your new phone, contact your
system administrator.
You can use BLF to monitor a specific line for status changes on the phone. For example,
you can configure a BLF key on the phone for monitoring the status of a friend’s line
(busy or idle). The BLF key LED illuminates solid red when the friend's line is in use. For
more information on BLF key LED indications, refer to
You can press a BLF key to dial out the monitored phone number when the monitored
line is idle. You can receive a visual and an audio alert (if enabled), and also pick up the
call when the monitored line receives an incoming call. For more information, contact
your system administrator.
To configure a BLF key via phone user interface:
1. Press Menu->Features->DSS Keys->Memory Keys (or Line Keys).
2. Select the desired DSS key.
3. Press or , or the Switch soft key to select BLF from the Type field.
4. Press or , or the Switch soft key to select the desired account from the
Account ID field.
5. Enter the phone number or extension you want to monitor in the Value field.