1.1 Incoming Call Features
Feature Guide 29
[Available Destination]
The following destinations can be called internally.
1.1.2.2 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]
In this example:
a) COS 1 can make calls to all extensions.
Destination
When calling from
Extension Doorphone
Wired Extension (PT/SLT/T1-OPX)
PS
ICD Group
PS Ring Group
VM Group (DTMF/DPT)
External Pager (TAFAS)
DISA
Analog/ISDN Remote Maintenance
Idle Line Access no. + Phone no.
CO Line Group Access no. + CO Line Group no. +
Phone no.
Extension of Another PBX (via TIE Line, Access with PBX Code)
Extension of Another PBX (via TIE Line, Access without PBX
Code)
Available
Caller
COS 1
COS 2
COS 3
COS 1
Block
COS 2
Block
Block
COS...
Block
Block
COS 3
Block
Called Party