Calls Originating From The Public Network - Nortel BCM50 Configuration Manual

• "Calls originating from the public network" on page 325
• "Calls originating in the private network" on page 326

Calls originating from the public network

Table 69 describes how each node handles calls originating from the public network into the
system.
Table 69 Call originating from the public network to a tandem network (Sheet 1 of 2)
Received Destination
Node A Node A
Node A Node B
Node A Node C
Chapter 35 Private networking: PRI and VoIP tandem networks
Description
User in Calgary dials 761-xxxx number
Incoming interface: Public
DN type: Public
Node A receives the call and identifies it as terminating locally. Uses target line to route
call (Public received #).
Destination: Local (target line)
User in Calgary dials a 762-xxxx number
DN type: Public
Node A receives it and identifies it as being for node B. Uses private trunk to route it to B.
Incoming interface: Public
Destination: Remote Node
Outgoing interface: Private
Node B receives the call and identifies it as terminating locally. Uses target line to route
call (Private received #).
Incoming interface: Private
Destination: Local (target line)
An external 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 C
6 + 393-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 the call and identifies it as terminating locally. Uses target line to route
call. (Private received #)
Incoming interface: Private
Destination: Local (target line)
Networking Configuration Guide
325