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Appendix A: Inter-Tel Private Networking
Sample Node Programming
Inter-Tel
®
5000 Installation Manual – Issue 2.4, May 2008
Page A-19
To prevent circular or excessive routes, the system limits the number of “hops.” A call or
communication can take up to 10 hops to other nodes. However, 2-3 hops maximum is
recommended. Using the example shown in Figure A-3 on
page A-18
, Figure A-4 on
page A-19
shows a call that makes three hops through intermediate nodes to reach a destination:
1.
A call is placed from Node 1 to Node 4.
2.
Node 1 attempts to route through Node Trunk Group 97502, but that route is not
available. Node 1 then routes the call using Node Trunk Group 97501 and uses Nodes 2
and 3 as intermediate nodes.
3.
Because the network has already routed the call through Node 1, Node 2 will not use
Node Trunk Group 97501 and routes the call through its Node Trunk Group 97502.
4.
Node 3 routes the call through its Node Trunk Group 97502 to Node 4. It will not use
97501 because the call came from Node 2.
Figure A-4.
Example Call Path Through Nodes
Determining in what order to list the Node Trunk Groups in a Node and when to use Linear or
Distributed search type depends on the system configuration and traffic.
NODE 1
Trunk Grp 92001
Trunk Grp 92002
Node Trunk Grp 97501
Node Trunk Grp 97502
NODE 2
Trunk Grp 92010
Node Trunk Grp 97501
Node Trunk Grp 97502
NODE 4
Trunk Grp 92030
Node Trunk Grp 97501
Node Trunk Grp 97502
NODE 3
Trunk Grp 92020
Node Trunk Grp 97502
LOCAL
SERVICE
LOCAL
SERVICE
LOCAL
SERVICE
LONG DIST
SERVICE
LONG DIST
SERVICE
NOT AVAILABLE
Node Trunk Grp 97501
Summary of Contents for Inter-Tel 5000
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