H3C XE 200/2000 IP, Operation Manual

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Operation Manual – Call Services
H3C XE 200/2000 IP PBX
Chapter 8 Calling Line Identification Services
8-1
Chapter 8 Calling Line Identification Services
8.1 Overview
The calling line identification control services are used to control whether to display the
caller’s number on the callee’s phone set.
The services include:
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Calling line identification presentation (CLIP) service
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Calling line identification restriction (CLIR)service
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Temporary reservation for CLIR service
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CLIR override service
8.1.1 CLIP Service
After a subscriber enables the CLIP service, the incoming call numbers are displayed
on its phone.
By default, the CLIP service is enabled for a subscriber. But if the service is disabled,
nothing or 00000000 is displayed on the telephone set of the subscriber for an
incoming call.
If the callee enables the CLIP service, while the caller enables the CLIR service at the
same time, still nothing or 00000000 will be displayed on the telephone set of the
callee.
8.1.2 CLIR Service
I. Introduction to CLIR service
CLIR service can block caller numbers from being displayed on called telephone sets.
By default, the CLIR service is disabled for a subscriber.
If the caller enables and registers the CLIR service, but the callee enables the CLIR
override service at the same time, the caller number will be displayed on the telephone
set of the callee.
II. Enabling/disabling CLIR service
After enabling the CLIR service, a subscriber can register the service in the following
two methods.
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The administrator performs the registration on the XE IP PBX through command
lines. Refer to 8.2.1 “ Configuring CLIP Service ” for details.
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The subscriber can perform the registration on the telephone set by following the
steps below.