AT&T PARTNER Installation And Use Manual page 17

Learning About Telephones
Contents
System Telephones
Buttons and Indicators
Lights
Ringing Patterns
Dial Tones
Using the Speaker and Microphone
Hands-Free Answer on Intercom (HFAI)
Speakerphone Performance Tips
Standard Telephones
Ringing Patterns
Dial Tones
Using the Switchhook
Limitations
Feature Phones
Combination Extensions
3
3-1
3-2
3-4
3-5
3-5
3-5
3-6
3-6
3-7
3-7
3-8
3-8
3-8
3-9
3-9
3-i