Line Access From An Isdn Terminal - Nortel Modular ICS 6.0 Manual

200 / ISDN PRI and BRI
• Sub-addressing
• bearer capabilities
• teleservices
The Call Forward All Calls feature can be used from ISDN
terminals connected to Modular ICS.
Note: Norstar and Business Series Terminal telephones can
accept voice calls only. Video and data calls do not alert
at a Norstar set.
Although an ISDN S-loop or LT-loop can support up to eight
devices, the loop has a limit of two B-channels. If both B-
channels are in use, other devices on that loop cannot make or
receive calls until a B-channel is available, or until both B-
channels are available, in the case of a video terminal. Thus,
the number of terminals installed must take into account
whether you require dedicated access for the terminals on that
loop.
Note: Set features, other than Transfer and Call Forward All
Calls, are not available to ISDN terminals. In addition,
you cannot retrieve a parked call, or reach a Direct-Dial
set by using the Direct-Dial digit from an ISDN
terminal.

Line access from an ISDN terminal

ISDN terminals do not have line keys or intercom keys as do
Norstar telephones and Business Series Terminals. To make
an outgoing call from an ISDN terminal, access an external
line by entering a line pool code or by using the ARS feature.
Modular ICS 6.0 System Coordinator Guide P0992640 03