Topcom Butler 3970/Twin/Triple/Quattro
7.6Display contrast
•Press MENU then scroll with the Up/down 
key to Handset settings menu and press OK.
•Scroll 
to Contrast and press OK.
•Select the right contrast with the Up/down 
key and press OK to confirm or Back to return.
•Press 
to return to standby.
7.7Wall paper
The handset has 2 wall papers (background pictures) which you can choose from:
•Press MENU then scroll with the Up/down 
key to Handset settings menu and press OK.
•Scroll 
to Wallpaper and press OK.
•Select Wallpaper 1 or Wallpaper 2 with the Up/down 
key and press View to show the selection. When the picture is shown you can still select another wallpaper with the Up/down 
key. Press OK to confirm.
•Press 
to return to standby.
7.8Prefix
It’s possible to program a prefix number into the handset. All numbers dialled out are dialled with this prefix number first.
7.8.1 Setting the prefix number
•Press MENU then scroll with the Up/down 
key to Handset settings menu and press OK.
•Scroll 
to Prefix and press OK.
•Select Prefix Edit with the Up/down 
key and press OK.
•Enter the prefix number (max 5 digits) and press OK.
7.8.2Setting the prefix On/off
When you are in the prefix menu:
• Select Prefix On/Off with the Up/down 
key and press OK.
• Select On or Off and press OK.
7.9Outgoing Call barring
You can bar certain outgoing calls depending with option you have select. When a call is barred, ‘Call is barred’ is shown on the display:
OFF: | all calls are allowed |
External: | No external calls are allowed, only internal calls |
PreCall: | Numbers starting with the programmed digits are barred |
All: | All outgoing calls are barred, only incoming calls can be made |
ENGLISH
Topcom Butler 3970/Twin/Triple/Quattro | 19 |