Nortel Communication Server 1000 Manual page 25

DASS2 - Line Identities
ISDN Access Code
Any ISDN Line Identities to be displayed on the system must be preceded
by the "ISDN Access Code". This is defined in the customer data block.
It must be defined at each network node which has access to the ISDN,
either locally or through the DPNSS1 network.
Provision of Line Identities to the ISDN
Normally, Line Identities will only be required of a DDI PBX. An option
must be defined so that line identities will be supplied when necessary.
Line Identity Digit Conversion
If incoming digit conversion is required to terminate DDI calls, then this
conversion must be reversed when line identities are being supplied to
the ISDN.
Trunk Identities
When used with DPNSS1, a "trunk identity" will be used for
originating/called line identity exchange and display purposes, for DPNSS1
calls.
Example of a DASS2 numbering scheme
Figure 5 "DASS2 typical numbering scheme" (page 26)
application of a DASS2 numbering scheme.
Copyright © 2007-2010 Nortel Networks. All Rights Reserved.
Nortel Communication Server 1000
DASS2 Fundamentals
NN43001-571 04.01 4 June 2010
Numbering plans for DASS2 routes 25
illustrates a basic