
Chapter 30 Public networking: Setting up basic systems 291
Networking Configuration Guide
Figure 93 DID system
Programming:
Lines
• Assign lines as auto-answer. Note: DID lines are incoming only. PRI lines can be used for both
directions.
• Configure target lines for each telephone, indicating public received number (769-4006 in the
example above).
Routing
• Create line pool access code to outgoing line pool.
Telephones
• Assign target line to each telephone.
• Assign outgoing line pool to telephones.
• Set call forward no answer and call forward on busy to attendant or voice mail system, if
available.
CO DID line 769
with range of call
numbers (4005 to
4020)
Target line mapped to
DN (4005)
Target line mapped to
a DN (4006)
Target line mapped to
DN (4007)
Target line mapped to
DN (4008)
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