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1.8.6 Preventing Your Number Being Displayed on the Called
Party’s Telephone (Calling Line Identification Restriction [CLIR])
When
making an outside call, you can select whether the called party can see your telephone number or not.
To show/prevent
On-hook.Off-hook.
PT/SLT/PS/SIP Extn.
Enter 7 1.
Show
Prevent
0
1
OR
17
Enter 0 to show
or 1 to prevent.
C.Tone
• You can change the mode by pressing a preset CLIR button while on-hook.
The CLIR 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 Calling Line Identification Restriction (CLIR) button.
User Manual 135
1.8.6 Preventing Your Number Being Displayed on the Called Party’s
Telephone (Calling Line Identification Restriction
[CLIR])