Panasonic S-ICX Manual
64
S-ICX (International) issued October 2000
S-ICX-50-700
Chapter 3. System Features
Section 700 - Operation
Hardware Requirements
•
VB-44510UK Loop Start Card
Considerations
•
N/A
Trunk Ringing Types
Description
Several types of trunk ringing are available for the System including the following:
•
Direct Dial Inward (DDI) Ringing
•
Direct Line (DL) Ringing
•
Direct Inward System Access (DISA) Ringing
•
Multiple Ringing
These ringing types may be used in any combination in the System.
DDI Ringing
DDI Ringing allows calls on a common trunk to be directed to ring to a specific extension or group of
extensions, etc. based upon the final digits dialled. These final digits are received from the DDI trunk
and compared to a DDI Table that determines where the calls should ring. Depending on the
assignments in the DDI Table, names or trunk numbers are displayed. (Names can be up to 10 digits
long.)
extensions, etc. based upon the final digits dialled. These final digits are received from the DDI trunk
and compared to a DDI Table that determines where the calls should ring. Depending on the
assignments in the DDI Table, names or trunk numbers are displayed. (Names can be up to 10 digits
long.)
DDI Ringing can be very useful by sending calls directly to a specific extension, hunt group, etc.
based upon the number dialled. Since a relatively small number of trunks handle the DDI calls, this
can be more cost efficient than DL trunks or attendant group answering and transfer. (DDI may send a
call to a group using the Virtual Extension feature.) DDI Busy/Delayed Ringing is also available with
DDI Ringing. (See “DDI (DID) Day/Night Busy/Delayed Ringing” on page 57.)
based upon the number dialled. Since a relatively small number of trunks handle the DDI calls, this
can be more cost efficient than DL trunks or attendant group answering and transfer. (DDI may send a
call to a group using the Virtual Extension feature.) DDI Busy/Delayed Ringing is also available with
DDI Ringing. (See “DDI (DID) Day/Night Busy/Delayed Ringing” on page 57.)
For more information on DDI trunk Trunk Interface, see “Trunk Interface - DDI (Not Available on
UK, TX or EX Model)” on page 63.
UK, TX or EX Model)” on page 63.
Hardware Requirements
•
N/A
Considerations
•
Caller ID takes priority over the DDI name assignment.
•
Only one of the two DDI tables may have name assignments.
•
If the DDI/DL 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.
destination key even if the Primary Directory Number extension is busy or does not answer.
•
If the DDI/DL destination is an UNA extension, the UNA will ring depending on DDI number
tenant group/ DL incoming trunk tenant group.
tenant group/ DL incoming trunk tenant group.
Direct Line Ringing
DL Ringing allows calls on a specific trunk to be directed to ring a specific extension, System Speed
Dial (SSD) number (for redirecting calls out), and hunting group.
Dial (SSD) number (for redirecting calls out), and hunting group.