Nortel Communication Server 1000 Manual page 28

28 Overview
A three digit local steering code, "584" is required at node A, in order to
distinguish from the trunk steering code used to route calls incoming from
node B to DASS2, "589".
Figure 6 "Network call termination" (page 28)
performed to terminate a network call from a node B user dialing 5-8-4321
to reach extension 4321 at node A.
Figure 6
Network call termination
Dialing PSTN numbers
PSTN numbers are handled using the BARS feature. The digit "9" is
defined as the BARS access code at both nodes. A minimum of 10
Special Numbers will be programmed, "0", "1", "2"....."9". Note that
calls to local PSTN numbers 5541xx and 5542xx must be programmed
not to be routed onto the public network. These are DID extension
numbers for PBXs A and B respectively. The Supplementary Digit
Restriction/Recognition (SDRR) feature must be employed at both nodes
to recognize these exceptions.
Special numbers
Special Number programming at node A
On node A, "5" is programmed as one of several Special Numbers. The
special number defines the routing for PSTN numbers which begin with the
digit "5". The basic programming for Special Number "5" is as shown in
Table 5 "Application of special number 5 at node A" (page
Nortel Communication Server 1000
DASS2 Fundamentals
NN43001-571 04.01 4 June 2010
Copyright © 2007-2010 Nortel Networks. All Rights Reserved.
shows the digit processing
29).