Technical data

3.3 Telephony 39
Click on NEXT to open the functional test page.
Figure 3.20: Telephony: Functional test
The functional test checks whether the phone is properly con-
nected. The HorstBox sends a signal and the phone should ring.
Pick up the receiver and put it back into the craddle.
Before executing the functional test you have to set up your ISDN
phone to MSN 21. Please refer to the documentation of the phone
to learn how to to do this.
You can configure more ISDN phones later on the tab TELEPHONY
on the page PHONES AND DEVICES.
Click on NEXT to continue.