Internal Call Block - Panasonic KX-TDA50 Feature Manual

3.1.2 Personal Programming

1.9.14 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
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.)
c)
COS 3 can make calls to COS 3 only.
COS 2
Extn. 102
Conditions
• Internal Call Block also prohibits certain features, such as Walking Extension and Walking COS, from
being performed between certain extensions.
• Any extension can make an Operator Call regardless of the Internal Call Block setting of its COS. (→
1.12.5 Operator Features)
• Because each doorphone port is assigned a COS, the Internal Call Block feature can restrict certain
extensions from calling certain doorphones. (→ 1.4.11 Doorphone Call)
Called Party
COS 1 COS 2
Block
Block Block
COS 1
Extn. 100 Extn. 101
Extn. 103 Extn. 104
COS 3 COS...
Block Block
Block
COS 3
Extn. 105 Extn. 106
1.9 I
Feature Manual 163