Panasonic KX-TDA100 Feature Manual page 168

1.9 I
[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)
Programming References
PC Programming Manual
2.8.13 [2-7-3] Class of Service—Internal Call Block—COS Number of the Extension Which Receive the Call
from Other Extension 1–64
2.9.9 [3-5-1] Incoming Call Distribution Group—Group Settings—Main—COS
2.10.1 [4-1-1] Wired Extension—Extension Settings—Main—COS
2.10.10 [4-2-1] Portable Station—Extension Settings—Main—COS
2.11.1 [5-1] Doorphone—COS
168 Feature Manual
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