Identification elements
88
System functions and features as of R3.0
syd-0367/1.3 – R3.0 – 03.2013
4. 4. 5 CLIP Display with a Virtual Network PISN User
A public network user can be set up as a virtual PISN user in the communication
server. Internal users will then perceive the user as another internal user: A call is
signalled with the internal ringing pattern. The internal number can also be dialled
for outgoing calls. Individual mobile user or entire number blocks can be inte-
grated in this way.
Setting Up a Virtual Network PISN User
A PISN user is set up for this purpose (see "Numbering plan", page 97). Enter the
public network user’s full number under External Number. For outgoing calls the
configured number will be dialled via the configured route instead of the dialled
PISN user number. This mechanism is similar to the one used for abbreviated dial-
ling.
When the user calls up from the public network, his CLIP number will be compared
with the numbers of all the PISN users. If there is a match, the called user is shown
the PISN user number by way of CLIP instead of the CLIP sent from the public net-
work.
4. 5 Display for Call Forwarding Unconditional
When Call Forwarding Unconditional is activated, it is useful for users to know that
the call was redirected, by whom and to whom. This means the called user is able
to answer the call on behalf of the user who redirected the call to him. With this in-
formation the calling user is better prepared for the call. This redirecting informa-
tion is available on system phones and ISDN terminals both internally and in pri-
vate networks. If the public network provider supports the function (special ar-
rangement), the redirecting information is also available to virtual PISN users and
users in the public network.
4. 5. 1 Information displayed to the called user
The called user sees not only the caller's name and number but also that the call
was redirected and who redirected it (redirecting information).
Example:
User A calls user B, who has redirected to user C. The display on an system phone at
user C reads:
<CNIP A> / <CLIP A> forwarded from <CNIP B> / <CLIP B>
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