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Nortel Modular Ics 6.0 Installer Guide

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caller information appears on both the caller telephone and 
the called telephone, regardless of the number of 
redirections
PSTN lines connected to one of the nodes in a network can 
provide local public service, at local rates, to all nodes in 
the network, regardless of location
Features specific to Advanced Private Network
centralized voice mail provides call waiting indications on 
the receiving telephone...

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NCRI count allows a call to be forwarded in the network 
up to five times before the system releases the call as 
undelivered. However if TAT or TRO occur, the counter 
gets reset, as well. This counter is hard-coded.
Profile 2: ETSI private networks provide line redirection.
Private Network Tandem calling
Tandem networking is a chained network established between 
two or more MICS systems. All the systems are connected...

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Tandem network
Calls originating from the public network
Received Destination Description
Node A Node A 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.
Destination: Local (target line)
Lines to public 
networkPublic
Networkprivate trunkprivate trunk
Norstar
Norstar
Public
Networkprivate...

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Node A Node B 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.
Incoming interface: Private
Destination: Local (target line)
Node A Node E User...

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Node  A Node  C 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 
i.e. 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...

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Calls originating in the private network
Node A Ottawa 
PSTNUser 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:...

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Node B Calgary 
PSTNUser on Node B dials a public DN.
Node B recognizes it as being the responsibility 
of Node A and uses private trunk to route the call 
to A.
Incoming interface: Intercom
Destination: Remote node
Node A receives the call and identifies it as being 
for the public network. Node A routes the call over 
the local public network.
Incoming interface: Private
Destination: Remote PSTN
Node B Node A User in...

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Node B  Node D User on B dials a private DN for node D.
DN type: Private
Node B identifies it as being for node A and uses 
private trunk to route the call to A.
Incoming interface: Intercom
Destination: Remote node
Node A receives it  and identifies it as being for  C. 
Uses IP trunk to route call to C.
Incoming interface: Private
Destination: Remote node
Node C receives it and identifies it as being for  D. 
Uses the...

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Routing for tandem networks
In tandem networks each node needs to know how to route 
calls that do not terminate locally. To do this, you set up routes 
for each connecting node by defining destination codes for 
each route.
If the node is also connected to the public network, the usual 
routing is required for that connection.
The following examples, show the routing tables for Node A 
and Node C for...

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Node A Destination Code Table, internal termination
Node C Destination Code Table, external termination
Node C Destination Code Table, internal termination
RouteAbsorb lengthDestination code (private DNs)
3 (Node B)0392 (Node B)
3 (Node B)0395 (Node E)
5 (Node C)0393 (Node C)
5 (Node C)0394 (Node D)
5 (Node C)0396 (Node F)
RouteAbsorb lengthDestination code (Public DNs)
3 (Node B)091613764 (Node D)
3 (Node B)091613766...
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