Message
Mute
Priority Calling
Select Ring
Send All Calls
Shift
Speaker
Speakerphone
Terminal Busy Indication Transfer
Display Features
Inspect
Message Retrieval
Normal
Time
Tones and Their Meanings
Key Words to Know
20
21
21
22
22
23
24
24
26
27
27
28
28
29
30
30
31
32
34
