ABOUT YOUR PHONE
The SUPERSET 4001 has six 
,
) and seven personal keys. A personal key can be programmed to dial a Speed Call number or a feature access code. Your telephone also features a large Message Indicator.
Telephone status indicators
When line is | the indicator is |
Idle | Off |
Busy | On |
Ringing | Flashing slowly |
On hold at your set | Flashing rapidly |
On hold at another set | Flashing slow on/fast off |
TIPS FOR YOUR COMFORT AND SAFETY
Don't cradle the handset!
Prolonged use of the handset can lead to neck, shoulder, or back discomfort, especially if you cradle the handset between your ear and shoulder. If you use your phone a lot, you may find it more comfortable to use a headset. See the section on headset usage elsewhere in this guide for more information.
Protect your hearing
Your phone has a control for adjusting the volume of the handset receiver or headset. Because continuous exposure to loud sounds can contribute to hearing loss, keep the volume at a moderate level.