Telephone Operation
NOTE!
It is not possible to deregister the handset that you use to perform this operation.
3.Press the Options key (Soft Key 1 
). Choose “View Subject”.
4.Press the OK key (Soft Key 1 
). The subject is displayed.
Deregister the Handset
You can deregister one or more handsets previously assigned to the same base.
To deregister a handset:
1.Go to the “Base Settings” menu. Press the OK key (Soft Key 1 
).
2.Choose “Deregister HS”. Press the OK key (Soft Key 1 
).
3.Choose the handset you would like to deregister. Press the OK key (Soft Key 1 
). The display will show “Deregister Handset n ?”, where n is the handset number.
4.Press the OK key (Soft Key 1 
) to confirm.
Call Blocking
You can block up to 5 locations with up to 5 digits. It is possible to specify the number and handset that cannot make a call to that prefix.
1.Go to the “Base Settings” menu. Press the OK key (Soft Key 1 
).
2.Choose “Call Blocking”. Press the OK key (Soft Key 1 
). The display will show “Prefix 1:_” or the stored blocking number. a. Note: When you delete the stored blocking number and
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