Yealink SIP-T28P Quick Reference Manual page 2

set to BLF
Blinking red
There is an incoming call to the monitored account
The monitored account is on an conversation
It is inactive as BLF
An incoming call to the device, or call on mute
Table 4 Line Keys set to BLF
An incoming call to the monitored account
It is inactive as BLF
, or there is call on hold
Dial from Pool: In dial-up interface, press Pool hot key, use the navigation button to highlight your
choice, enter into the corresponding option, choose a record, then press the SEND button to call out
Press the HOLD button or Hold softkey to put your active call on hold and then the corresponding line
key will blink
If there is only one call on hold, press the Resume softkey or Hold button to retrieve the call
When the call is answered, press the CONF button, the conference call will now include you and the
other two parties
the power indicating LED will blink