Nortel BCM 3.7, Manual, Page: 527 / 1004

Creating tandem private networks 527
Programming Operations Guide
Node A Node D 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. (Private received #)
Incoming interface: Private
Destination: Local (target line)
Node A Ottawa
PSTN 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
Table 115 Call originating from the public network to a tandem network (Continued)
Received Destination Description