ISDN Facilities
BusinessPhone – Dialog 4224 Operator / Dialog 321482
Answer an incoming call from an
ISDN-line
A ringing signal and a flashing lamp indicate an incoming call,
answer the call in the normal way. One of the following four cases
will occur.
Example 1:
The public net provides the number of the caller.
Mr. Plattner with public number 0 181100 4736 is calling.
Example 2:
The caller has activated Number Secrecy. (The calling number will
be suppressed.)
Example 3:
The public net cannot provide the calling number, in this case the
normal number of the external line will be shown.