System Planning
System Planning Forms and Guidelines
DBS-2.3/9.2-540
T1 Networking - Revised April 2000
Page 21
Network Trunk Group Selection
Each DBS system determines how to route a network call by selecting a
Network Trunk Group based upon the leading digit dialed. When a network
call is dialed, the system will try to route the call via an available trunk in the
Network Trunk Group with first priority. If no trunk in this Network Trunk
Group is available, the DBS will then try to route the call via a trunk in the
group with second priority then third priority. For each DBS, assign the
network trunk routing for each node number dialed using Table 2-9 through
Table 2-12:
Table 2-9. Network Trunk Group Selection for DBS 1
Table 2-10. Network Trunk Group Selection for DBS 2
Table 2-11. Network Trunk Group Selection for DBS 3
Network Node
(Leading Digit
Dialed)
1st Priority
Network Trunk
Group
2nd Priority
Network Trunk
Group
3rd Priority
Network Trunk
Group
2
3
4
Network Node
(Leading Digit
Dialed)
1st Priority
Network Trunk
Group
2nd Priority
Network Trunk
Group
3rd Priority
Network Trunk
Group
1
3
4
Network Node
(Leading Digit
Dialed)
1st Priority
Network Trunk
Group
2nd Priority
Network Trunk
Group
3rd Priority
Network Trunk
Group
1
2
4
Summary of Contents for DBS Section 540
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Page 127: ...Network Feature Operation SMDR DBS 2 3 9 2 540 T1 Networking Revised April 2000 Page 127 ...
Page 128: ...SMDR Network Feature Operation Page 128 T1 Networking Revised April 2000 DBS 2 3 9 2 540 ...
Page 146: ...146 T1 Networking Revised April 2000 DBS 2 3 9 2 540 Index ...