Commander Connect Owners Manual
110
Setting up and using ISDN
If your Commander Connect is equipped with ISDN access, there are a number of additional
features available.
Multiple Subscriber Numbering (MSN) / Direct Dialling
In (DDI)
Your ISDN Network Provider can allocate more than one number to each of your ISDN
Accesses. This ISDN supplementary service is called either Multiple Subscriber Numbering
(MSN) or Direct Dialling In (DDI). MSN numbers are allocated to each Point-to-Multipoint (P-
MP) ISDN Access. DDI numbers are allocated across all your Point-to-Point (P-P) ISDN
Accesses).
These numbers may be programmed to ring individual Stations allowing callers to dial through
directly. You may also choose to allocate a number to a group of Stations, so that a caller may
dial directly to that particular group.
A typical way of using this facility is to publicise one of these numbers as a fax number and then
route calls received on this number through to a fax machine connected to a Station. Another
typical use is to have users publicise their individual numbers and have callers ring directly to
their Stations, but retain at least one number to ring on a Line that can be provided with call
services such as Auto-attendant, Voicemail Answering Machine and Courtesy Service.
MSN/DDI numbers are also sent to the network as the Calling Line Identification (CLI) for
presentation to the called party.
You may associate names with your MSN/DDI numbers and use the Tele-secretary feature to
have the name displayed for incoming calls. For more detail refer to page 115
You can program your system to recognise up to one hundred MSN/DDI numbers. Each is
given an Index from 001 to 100.
If your ISDN Accesses are P-P then the 100 Indices can be shared across all ISDN Accesses.
If your ISDN Accesses are P-MP mode, each Access can be allocated up to ten Indices
