Yealink SIP-T23P User Manual page 123

The phone plays a warning tone (if enabled).
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The BLF key LED flashes red.
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The caller ID appears on the LCD screen (if enabled).
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In the following figure, the LCD screen shows an incoming call from 2500 on the
monitored line.
Note
If your phone is locked and the type of the phone lock is configured as Function Keys or
All Keys, you cannot use the DPickup, Send, NewCall and Cancel soft keys until unlocked.
For more information, refer to
When there is an active call on the IP phone, you can transfer the active call to the
monitored phone number directly by pressing the BLF key. The phone handles the active
call differently depending on the transfer mode via DSS key. For more information on
performing call transfer, refer to
You can use the BLF List feature to monitor a list of users defined by your system
administrator. For example, your system administrator enables BLF List, and creates a
BLF List URI (e.g., BLFList@example.com) including a list of user1, user2 on the server.
The BLF List keys on the IP phone can present the status of user1 and user2. The key LEDs
illuminate either flashing or solid depending on the status of those users. For more BLF
List key LED indicators, refer to
You can use the BLF List keys in the following ways:
When the monitored user is idle, press the BLF list key to dial out the phone number.

When there is already an active call on the IP phone, you can transfer the active

call to the monitored user by pressing the BLF List key. The phone handles the
active call differently depending on the transfer mode on DSS key. For more
information on the transfer mode on DSS key, refer to
on page 71.
When the monitored user receives an incoming call, press the BLF list key to pick up

the call directly. Before picking up an incoming call, ensure that the BLF List Pickup
Code has been configured in advance. If the code is not configured, the phone will
place a call to the monitored user instead of picking up the incoming call of the
Phone Lock on page 40.
Transfer in DSS Keys section on page 71.
LED Instructions on page 14.
Advanced Phone Features
Transfer in DSS Keys section
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