Yealink SIP-T23P User Manual page 113

4. Click Confirm to accept the change.
Note
Visual and audio alert features are configurable via web user interface only.
When the monitored line receives an incoming call, the following occurs on your phone:
The phone plays a warning tone (if enabled).

The BLF key LED flashes red.

The caller ID appears on the LCD screen (if enabled).

In the following figure, the LCD screen shows an incoming call from 1002 on the
monitored line.
Note
If your phone is locked and the type of the keypad lock is configured as Function Keys or
All Keys, you cannot use the Pickup, Send, NewCall and Cancel soft keys until unlocked.
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 transfers the
active call differently depending on the transfer mode on DSS key. For more information
on the transfer mode on DSS key, refer to transfer in the
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 indications, 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 transfer in
on page 49.
LED Instructions on page 4.
Advanced Phone Features
DSS Keys section on page 49.
DSS Keys section
103