Appendix

148

9
Connecting the Machine to the ISDN
Optional ISDN Unit required.
For how to install the optional ISDN unit, please contact your service represent-
ative.
Connect the machine to the ISDN with a modular type connector.
Connecting The Optional External Telephone
You can connect the handset and an external telephone to the machine. You can
use them for telephone calls.
Note
❒Some telephone may not be connected or may suffer reduced functionality.
Limitation
❒When you use the handset or an optional external telephone with the On
Hook Dial key for telephone calls, you can not talk with the other party with-
out pressing the On Hook Dial key after taking off the receiver.
❖
❖❖

❖Specifying the handset line type

The switch on the handset should be in the appropriate position-TT (Tone Dial-
ing) or DP (Pulse Dialing).
ZCHH070N.eps
DPTT
ND1X00E0
Nd1x00e0.eps