2.1.2.2 Internal Call Block
Description
Internal calls can be restricted on a COS basis. This is done by specifying which COS destinations are blocked
for each COS.
[Programming Example]
Caller
Called Party
COS 1 COS 2 COS 3 ...
COS 1
COS 2
ü ü ü
COS 3
ü ü
ü
: : : : :
ü: Block
Explanation:
a. COS 1 extensions can make calls to all extensions.
b. COS 2 extensions can make calls to COS 1 destinations only. (COS 2 extensions cannot make calls to
COS 2 destinations.)
c. COS 3 extensions can make calls to COS 3 destinations only.
Conditions
• Restricted extension numbers cannot be used as the parameter of a feature setting (e.g., FWD).
• All extensions can make an Operator Call (® 5.1.5 Operator Features) regardless of Internal Call Block.
• This feature can also restrict calling a doorphone from an extension on the basis of the COSs assigned to
the extension and doorphone port. (® 2.18.1 Doorphone Call)
Feature Guide 41
2.1.2 Internal Call Features
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