System Outline
12
Installation Manual
1.1
System Highlights
1.1.1
System Highlights
System Capacity
Module Expansion
Expansion modules are used to increase the system capacity. An ISDN (BRI) line module can
be added to the basic system to add 2 CO lines or 8 ISDN extension lines (default: Port3 —
Extension).
Intelligent Call Handling — Distribution of Incoming Calls
Directs an incoming outside call to a specific extension/group depending on the DDI/MSN
numbers provided by Integrated Services Digital Network (ISDN) or the caller's identification
number (CLIP).
Built-in Voice Message
Enables you to store a voice message transferred from internal/external calls, if an optional
card KX-TD61291 is installed in the main unit KX-TD612.
Basic
System
Module
Expansion
Maximum
Capacity
CO line (ISDN (BRI) CO Line)
Extension line
4(2)
12
2(1)
—
6(3)*
12
* ISDN (BRI) port 2 and ISDN (BRI) port 3 can be selected to be used for a CO line or ISDN
extension line (default: Port 2 — CO line/Port 3 — Extension). The maximum capacity of the
system depends on the line selection. See below.
Line Selection
CO Line
ISDN
Extension
Line
Extension
Line
3 ISDN (BRI) ports are selected for CO line
6
0
12
2 ISDN (BRI) ports are selected for CO line
4
8
12
1 ISDN (BRI) port is selected for CO line
2
16
12
