Nortel Communication Server 1000 Manual page 25

Example of a DASS2 numbering scheme
Figure 5 "DASS2 typical numbering scheme" (page 25)
application of a DASS2 numbering scheme.
Figure 5
DASS2 typical numbering scheme
The PBXs are identified by node codes 8 and 9. In this example figure,
the Network Access Code is 5. To place a call to a remote extension, the
following digit fields must be dialed:
To make a local call the Network Access Code and node code part of the
number can be omitted.
Access to the PSTN via the node A DASS2 route is obtained by dialing "9"
followed by the required PSTN number. This applies to both nodes A and B.
However, ISDN numbers 5541xx and 5542xx are the PSTN DDI numbers
Copyright © 2007, Nortel Networks
.
Network Access Code (5) + node code (8) + DN (4000 - the desired
extension at the remote node.)
Nortel Communication Server 1000
DASS2 Fundamentals
NN43001-571 02.01 Standard
Release 5.5 7 December 2007
Numbering plans for DASS2 routes 25
illustrates a basic