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78 CHAPTER 6: GETTING MORE FROM YOUR TELEPHONE SYSTEM
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 3Com 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 certain NBX systems, if your organization subscribes to Caller ID
service from your local telephone company, 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 3Com Manager’s Telephone:
1 Press the Features soft button.
2 Scroll to CLIR-All.
3 Press Select.
The NBX system does not send caller ID information on this call or any
future calls until you disable this feature.
To disable CLIR-All for all calls from your 3Com Manager’s Telephone:
1 Press the Features soft button.
2 Scroll to CLIR-All.
3 Press Select.