If your Inspiration is connected to ISDN 2 lines there are
a number of additional services which you can provide
on the switch.
Note:
The ISDN2 services are provided on Inspiration
switches supplied with the ISDN capability. If your
switch was supplied as a standard unit, without the
ISDN capability, it can be upgraded by the addition of
the ISDN upgrade kit.
Multiple Subscriber Numbering
(MSN)/Direct Dialling In (DDI)
Your network provider can allocate more than one
number to each of your ISDN2 lines. These numbers
may then be programmed to ring individual extensions
and provide you with Direct Dialling In to those
extensions. Direct Dialling In means an external caller
can dial directly through to a specific extension. You
may also choose to allocate a number to a group of
extensions so that a caller may dial through to a
particular group of extensions.
An example of typical use of this facility is to publicise
one of these numbers as a fax number and route calls
received on this number through to a fax machine
connected to an extension.
Another typical use is to have some numbers ringing
directly through to extensions and retain at least one
number which will ring in like a normal line. This
number can then be provided with the normal call
services of Auto Attendant, Answering machine and
Courtesy service.
This service is provided by your network provider.
Programming MSN / DDI numbers
●
From the programming position, press the phone
set up key
P
and select ‘System programming’
●
Enter the PIN and select ‘Extensions’
●
Select ‘Allocating MSN / DDI’
●
Select the index number
●
Enter the MSN / DDI number
●
Select the extension(s) to ring for this number.
The same table is used for MSN and DDI numbers.
MSN numbers are allocated on an ISDN2 line basis for
each P-MP access.
DDI numbers are allocated for P-P accesses and are
allocated across all P-P accesses.
In P-MP mode each access can be allocated up to 10
MSNs.
For ACCESS 1
these are Index numbers 1-10
For ACCESS 2
these are Index numbers 11-20
For ACCESS 4
these are Index numbers 21-30
For ACCESS 5
these are Index numbers 31-40
The numbers entered are used for two purposes.
For CLIP / CLIR and Network facility activation the
number entered is sent to line.
The switch also matches the received MSN / DDI
number to route the call to extensions.
A total, of 15 digits can be entered as an MSN or DDI
number.
Up to 18 extensions can be associated with each MSN
/ DDI number.
Extension 20 is allocated by default to each MSN/DDI
number. When programming a different extension(s) to
ring extension 20 must be removed.
If an attempt is made to remove extension 20 without
programming another extension the prompt ‘Minimum
reached’ will be displayed and extension 20 will remain
programmed. Similarly if an attempt is made to remove
a single extension the same prompt will be given.
Calling Line Identity (CLI) services
Calling Line Identity services are network services that
may be provided on your ISDN2 lines.
Calling Line Identity Presentation
(CLIP)
The CLIP service means that when you receive an
incoming call on your ISDN2 lines the caller’s number is
presented to the Inspiration. This number, or name if a
name has been associated with the number through
administration programming, is displayed on all
Featurephones programmed to ring.
The additional services of storing call information,
dialling numbers in the call stores and routing calls on
the received numbers, as described in ‘Using Caller
Display and Calling Line Identity Services (CDS, CLI)
are provided.
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BT Inspiration ISDN Services
Summary of Contents for Featurephone
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