Direct In Line Ringing; Direct Inward System Access Ringing - Panasonic DBS576 Section 700 Technical Manual

Section 700 - Operation
a call to a group using the Virtual Extension feature.) DID Busy/Delayed Ringing is also available
with DID Ringing. (See "DID Day/Night Busy/Delayed Ringing" on page 64.)
For more information on DID CO Trunk Interface, see "CO Trunk Interface - DID" on page 36.
Hardware Requirements
• N/A
Related Programming
• N/A
Considerations
• Caller ID takes priority over the DID name assignment.
• Only one of the two DID tables may have name assignments.
• If the DID/DIL destination is a Directory Number (DN), the call goes to an extension that has a
destination key even if the Primary Directory Number extension is busy or does not answer.
• If the DID/DIL destination is an UNA extension, the UNA will ring depending on DID number
tenant group/ DIL incoming CO tenant group.

Direct In Line Ringing

DIL Ringing allows calls on a specific CO line to be directed to ring a specific extension, System
Speed Dial (SSD) number (for redirecting calls out), and hunting group.
This can be very useful when a trunk is dedicated to a specific person or purpose. However, this can
be a more expensive use of the line since it has a more limited use.
Hardware Requirements
• N/A
Related Programming
• N/A
Considerations
• If the DID/DIL destination is a Directory Number (DN), the call goes to an extension that has a
destination key even if the Primary Directory Number extension is busy or does not answer.
• If the DID/DIL destination is an UNA extension, the UNA will ring depending on DID number
tenant group/ DIL incoming CO tenant group.

Direct Inward System Access Ringing

DISA Ringing (which is related to the DISA feature) allows a CO trunk specified as a DISA CO trunk
to ring and give off-site users dial-in access to the System. Once the DISA trunk is accessed, the user
receives dial tone and may dial an extension.
For more information on DISA, see "Direct Inward System Access" on page 43.
Hardware Requirements
• N/A
Related Programming
• N/A
576-20-700 DBS 576 (USA), issued January 1999
Chapter 3. System Features
35