
330 Chapter 31 Public networking: Setting up basic systems
N0060606N0060606
Programming:
Lines
• Set lines to manual answer.
• Configure into a line pool.
Telephones
• Line pools are assigned to general office telephones.
• The Prime line is set to the line pool.
• Lines are assigned individually and as a line pool to the central answer position (set to appear
and ring).
Public network: DID system
Direct Inward Dialing (DID): A call is received over the DID circuit (for example, PRI) and is
preceded by a packet of information (Receive Digits) containing the number that was dialed. The
BCM decodes this information and routes the call to the extension that has been programmed with
the designated Target Line. The benefit to the customer is a pooled access group for incoming calls
so that dedicated lines are not required to be terminated on the system for each user.
This setup allows you to assign a dedicated phone number to each telephone. The CO assigns a list
of available numbers for each DID line. You can change your DN range to match these numbers,
or you can use target lines to match each number with a DN.
Figure 112 illustrates an example of a DID system.
Figure 112 DID system
Programming:
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)
Komentarze do niniejszej Instrukcji