Nortel ICS Install Manual page 132

132 / Private networking using PRI SL-1
Received Destination
Node A Node D
Node A Ottawa
PSTN
Modular ICS 7.1 Installer Guide
Description
User in Calgary dials a 761-xxxx number which is
answered with DISA.
Incoming interface: Public
DN type: Public
Destination: Local (DISA DN)
User enters a COS password and a private DN
for Node D, i.e. 6 + 394-xxxx
DN type: Private
Node A receives it and identifies it as being for C.
Uses the private trunk to route the call to C.
Incoming interface: (DISA user)
Destination: Remote node
Node C receives it and identifies it as being the
responsibility of D. Uses private trunk to route call
to D.
Incoming interface: Private
Destination: Remote node
Node D receives the call and identifies it as
terminating locally. Uses target line to route call.
Incoming interface: Private
Destination: Local (target line)
User in Calgary dials a 761-xxxx number which is
answered with DISA. User enters a COS
password and an Ottawa public network number.
Incoming interface: Public
DN type: Public
Destination: Local (DISA DN)
Node A receives it and identifies it as being for C.
Uses the private trunk to route the call to C.
Incoming interface: Local (DISA user)
Destination: Remote PSTN
Node C receives the call and identifies it as a
public number and routes it out over the local
PSTN.
Incoming interface: Private
Destination: Local PSTN
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