Direct Inward Dialling (Did) - NEC Xen Topaz Features And Specifications Manual

XEN Topaz

Direct Inward Dialling (DID)

• Description
Direct Inward Dialling (DID) lets outside callers directly dial system extensions. DID
saves time for callers who know the extension number they wish to reach. To place a
DID call, the outside caller dials the number to ring the telephone system extension.
For example, DID number 926-5400 can directly dial extension 400. The caller does
not have to rely on attendant or secretary call screening to complete the call.
In addition to direct dialling of system extensions, DID provides:
DID Dialled Number Translation
DID allows different tables for DID number translation. This gives you more flexibility
when buying DID service from telco. If you can't buy the exact block of numbers you
need (e.g., 301-556 200-499), use the translation tables to convert the digits received.
For example, a translation table could convert digits 501-756 500-799 to extension
numbers 301-556 200-499.
The Topaz system has 2000 DID Translation Table entries that you can allocate among
the 20 DID Translation Tables. There is one translation made in each entry. For a
simple installation, you can put all 2000 entries in the same table. For more flexibility,
you can optionally distribute the 2000 entries among the 20 tables.
In addition to number conversion, each DID Translation Table entry can have a name
assigned to it. When the DID call rings the destination extension, the programmed
name displays.
Flexible DID Service Compatibility
You can program the system to be compatible with up to 8 digit DID service. Be sure to
program your system for compatibility with the provided telco service. For example, if
the telco sends four digits, make sure you set up the translation tables to accept the
four digits.
For analogue DID, the system is compatible with Dial Pulse (DP) and DTMF DID
signalling. DID trunks can be either wink start or immediate start.
DID Camp-On
DID Camp-On sets what happens to DID calls to busy extensions when you have Busy
Intercept disabled (22-11-04). With DID Camp-On enabled, a call to a busy extension
camps-on. If Program 22-11-04 is set for No Answer step on, the call will step on after
the DID Ring No Answer Time interval (22-01-06). It will step on to the programmed
DID Intercept extension ring group or Voice Mail (22-11-05/06). Without DID Camp-On,
the caller to the busy extension just hears busy tone.
Features and Specifications Manual
Note: Direct Inward Dialling requires DID service from the Network Provider.
•
DID Dialled Number Translation
•
Flexible DID Service Compatibility
•
DID Intercept
•
DID Camp-On
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Chapter 4 - 141