Mitel 430 - Virtual Networking in the ISDN Network; Features in the Up-Circuit Communication Server

Features
324
System functions and features as of R4.1
syd-0570/1.2 – R4.1 – 08.2016
9. 2. 4. 2 Virtual Networking in the ISDN Network
In a virtual networking or in a virtual PINX in the public network the following conditions
have to be met:
• The feature is supported end-to-end by the public ISDN network.
• Service compatibility between private ISDN and public ISDN is guaranteed for the
feature.
Example: Callback if busy
"Callback if busy" is supported within the private network. Compatibility for this feature
between private network (QSIG protocol) and public network (DSS1 protocol) is guar-
anteed. It is possible to activate callback between A and C and between B and C
(Fig. 182
) if the public network supports the feature end-to-end.
Fig. 182 Using a feature via the public network
Note:
With the overflow procedure (see "Testing overflow routing in the PISN", page 246) calls within
the PISN are routed via the public network. In this case the conditions for networking with DSS1
apply. The ranges of services available can be restricted for such calls.
9. 2. 5 Features in the up-circuit communication server
A number of features can be triggered in the up-circuit communication server using
route selection. For more details please refer to the user's guides of the terminals and
the features overview of the up-circuit communication server.
A
B
C
DSS1
QSIG
PINX
PINX
PINX
PISN users
Public ISDN
Usage of the "Callback if busy" feature if end-to-end is
supported by the public network