Panasonic KX-T7737 Quick Reference Manual page 3

Desired Feature
Automatic
Callback Busy
Message
Waiting
Call Waiting
Operation for KX-TA624/TA824
When the Dialed Extension is Busy/No Answer
To set
While hearing a busy tone
To leave a notification
Sender
To cancel a notification
To call back
Receiver
To clear all notifications
While hearing a busy tone
Sender
Receiver
To talk to the new party
Terminating a current status
( )
Holding a current status
Operation
To call
If you hear callback ringing
receiver's extension no.
Wait for an answer.
For outside calls
For intercom calls
While hearing the Call Waiting tone
( )
Set
Cancel
Set
Cancel
3