System Functions and Features as of I7.9
Call routing
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.2009
Prerequisites
The following requirements have to be met for three-party connections in the ex-
change to be activated:
•
Basic accesses in point-to-multipoint operation (DSS1 only; QSIG and analogue
not supported).
•
For Italy only: Basic accesses in point-to-point operation (DSS1 only; QSIG and
analogue not supported).
•
The supplementary services required must be available at every basic access at
which the function is to be supported (subscription may be required).
•
The enquiry call connection must be set up as an outgoing call by the internal
user. It has to be routed via the same basic access as the first connection.
•
Authorisations must be enabled (see
"System configuration", page 212
).
PBX Response if the Procedure Fails in the Exchange:
•
Hold cannot be transferred to the exchange:
– The call is put on hold in the PBX.
– Any subsequently initiated three-party connections are carried out locally in
the PBX.
•
Three-party conference / call transfer in the exchange not carried out:
The PBX cannot carry out the function locally as the call is on hold in the ex-
change. The function cannot be carried out.