FEATURES GUIDE

General Features
Features Guide 71
Calling/Connected Line Identification Restriction
(CLIR/COLR)
Description
Calling Line Identification Restriction (CLIR) restricts showing the calling party's number on
the display of the called party's telephone when a call is received.
Connected Line Identification Restriction (COLR) restricts showing the called party's number
on the display of the calling party's telephone when the called party answers a call.
Each of these features is one of ISDN's services.
Conditions
• If the displaying is enabled, the called party can check the calling party's number before the
called party answers it (CLIP: Calling Line Identification Presentation, case by case).
• If the displaying is enabled, the calling party can check the called party's number when the
called party answers it (COLP: Connected Line Identification Presentation).
Programming Guide References
• [005] Flexible CO Button/PF Key Assignment
• [100] Flexible Numbering
• [516] Calling Line Identification Restriction
• [517] Connected Line Identification Restriction
• [623] CLIP/COLP Number Assignment for Extension
• [624] CLIP/COLP Number Assignment for ISDN Extension
Features Guide References
None
User Manual References
• 2.7.6 Preventing Your Number Being Displayed on the Called Party's Telephone (Calling
Line Identification Restriction [CLIR])
• 2.7.7 Preventing Your Number Being Displayed on the Calling Party's Telephone
(Connected Line Identification Restriction [COLR])
• 4.1.3 Customising the Buttons