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1.8.5 Preventing Your Telephone Number Being Displayed on the
Caller’s Telephone (Connected Line Identification Restriction
[COLR])
When receiving an outside call, you can select whether the caller can see your telephone number or not.
To show/prevent
On-hook.Off-hook.
PT/SLT/PS/SIP Extn.
Show
Prevent
0
1
OR
07
Enter 7 0. Enter 0 to show
or 1 to prevent.
C.Tone
• You can change the mode by pressing a preset COLR button while on-hook.
The COLR button light shows the current status as follows:
Off: shows your telephone number.
Red on: prevents your telephone number being displayed.
• Availability of this feature depends on the ISDN service of your telephone company.
Customising Your Phone
• 3.1.3 Customising the Buttons
Create or edit a Connected Line Identification Restriction (COLR) button.
134 User Manual
1.8.5 Preventing Your Telephone Number Being Displayed on the Caller’s Telephone (Connected Line Identification
Restriction [COLR])