3Com NBX 3101, User Manual

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Caller ID 87
Caller ID
Your administrator can set up your NBX system to allow for Internal and
External Caller ID or can configure the system so that you can block your
identity (telephone number) from anyone you call.
Internal and External
Caller ID
By default, the NBX system shows the extension and name of any internal
caller on the display panel of your NBX telephone.
External Caller ID provides the same information for external incoming
calls if your organization subscribes to the service from your local
telephone company and if the caller has not blocked the information
from being sent to the NBX system.
Availability and service charges for External Caller ID vary by location.
Calling Line Identity
Restriction (CLIR)
On NBX systems that include T1 lines that are configured as DS1, you can
choose to prevent the NBX system from transmitting your Caller ID
information to outside parties when you dial a call. Your administrator
must enable this feature, called Calling Line Identity Restriction (CLIR), on
the NBX system. If this feature is enabled system-wide, you can choose to
restrict calls:
■
For all external (outbound) calls that you dial
OR
■
For only the next single external (outbound) call that you dial
Your administrator can configure your system so that CLIR is always
active, in which case you cannot change the CLIR settings on your
telephone to override this option.
CLIR for All External Calls
To enable CLIR-All for all calls from your telephone:
1 Pick up the handset, and press the Feature button and 889 . The display
panel on your NBX Telephone shows CLIR-ALL on.
2 Dial the number that you want to call.
The NBX system does not send caller ID information on this call or any
future calls until you disable this feature.