Nortel Networks i2021 Series - Manual (Page 67)

i2021 ISDN Teleset
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assignments. This results in returned instruments, unnecessary expense
and loss of use.
Press MENU, View, Key. The Teleset will now display each key and the
feature assigned to that key.
Press the Next or Prev softkey to step through each key.
Or
Press the hardkey that you wish to view
Or
Dial the key number using the touchtone keypad
The Directory Numbers assigned to the Teleset are easily viewed by
pressing MENU, View, DN.
The Teleset will light the appropriate Call Appearance keys and display the
DN assigned to them. This is helpful when checking Multiple Call
Appearances or labeling the Teleset.
Protecting Keys from Being Overwritten
Once the Teleset has been completely programmed, it is possible for the
serving switch to change the Teleset’s programming. This feature is
called Auto-Parameter Downloading. Like all features, there are pluses
and minuses to it. On the plus side, the Teleset will always be in
agreement with the switch. On the minus side, the switch can erase
Speed Dial keys, remapped keys, etc. without the user’s knowledge.
There are two different methods for protecting the Programmable
Hardkeys. The first is to disable the automatic download. The second is
to allow the automatic download but protect the keys on a key-by-key
basis.