Isdn Facilities; Number Identification - Ericsson Dialog 4222 Office User Manual

BusinessPhone – Dialog 4222 Office / Dialog 3211 & 3212

ISDN Facilities

Note: This section only applies to the Dialog 4222 Office
and the Dialog 3212 Standard telephone.
This chapter is only relevant when your system is connected to a
digital trunk line (ISDN-trunk line). It provides a general view of all
the (supplementary) services available from the public net which are
supported by the system. The services from the public net differ
from market to market. Please ask your system administrator
which features are available.

Number Identification

The main difference compared to the analog public net is the
Number Identification between the connected parties.
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When you establish an outgoing external call, the public number of
your system and your extension number will be sent to the called
party. If the number of the answering party is different from the
dialled one (for example, after a diversion), you will also be informed
about the answering party's number.
When you answer an incoming external call on your phone (or from
another phone), you will see the caller's number on the display.
Your public number will be sent to the caller.
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