12.2.1 PBX Configuration—[4-2-1] Extension—Portable Station—Extension Settings—Main
→ Extension Number
→ Extension Name
Feature Manual References
7.1.3 Flexible Buttons
Operating Manual References
1.2.1 Making Calls
1.3.3 Alternate Calling
—Ring/Voice
1.4.3 Directories
3.1.2 Personal Programming
10.1.15 Internal Call Block
Description
Internal calls can be restricted based on the Class of Service (COS) assigned to the caller and to the called
party.
[Programming Example: Internal Call Block]
Caller
COS 1
COS 2
COS 3
COS 1
Block
COS 2
Block
Block
COS...
Block
Block
COS 3
Block
Called Party
In this example:
a. COS 1 can make calls to all extensions.
b. COS 2 can make calls to COS 1 only. (COS 2 cannot make calls to COS 2.)
208 Feature Manual Document Version 2016-03
10.1.15 Internal Call Block
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