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Issue 2.2
Feature Description and Operation Manual
14
2.8
Direct Inward Dialing (DID)
Description
A carrier service, known as Direct Inward Dial (DID), sends digits to the system so that the call
may be routed directly to a specific station, Hunt group, VMIB announcement, Speed, or Page,
bypassing the Attendant. Digits sent to the system are generally the last digits (3 or 4) dialed
by the caller. DID service is available for digital and IP CO lines only and not analog CO lines.
For digital CO Lines, after collecting the digits from the carrier, ipLDK converts the digits
employing one of three DID Conversion Types:
Type 0 collect incoming digits and convert using the DID digit mask, resulting in the DID
destination number.
Type 1 use the incoming DID digits as the destination number without converting.
Type 2 use DID conversion Type 0 as index to the Flexible DID Conversion Table.
Consideration
For ISDN DID CO calls, if the received Caller Id matches an ID in the ICLID Table the call
routing is determined from the Flexible DID Conversion table index. If Caller Id does not
match an entry in the ICLID Table, the normal DID call processes are used.
DID calls that encounter a busy or DND signal, are not answered in the DID/DISA No
Answer Timer, or are received at a vacant or invalid number can be routed to the
Attendant, a tone, Station group, or VMIB announcement as defined by the DID/DISA
Destination routes. When the Attendant receives such calls, the call is appropriately
identified by the Attendant Phone display.
A station which activates an Absence Text Message may automatically be placed in DND
and DID calls routed based on the DID/DISA Destination DND route.
For a station that is part of a non-pilot Hunt group, if the station is busy or does not
answer the call, DID calls will follow the group hunt process.
DID calls are subject to Group Call Pick-up and Directed Call Pick-up.
If an announcement is defined as the destination in the Flexible DID Table, a Caller
Controlled Routing Table for the announcement can be defined.
DID calls to a busy station can be placed in a waiting state according to admin
programming.
Reference
A. Day/Night Service
B. System Speed Dialing
C. Paging Features
D. Caller Controlled Routing
E. Station Call Pickup
F. Absent Text Message
G. VoIP Services
Admin Programming
DID Restriction (PGM 114 – FLEX 16)
Summary of Contents for ipldk-60
Page 1: ...Feature Description Operation Manual ...
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Page 269: ...Admin Programming Manual ...
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