Specifications

CONTENTS
4.1.10
DATA SECURITY
Single line extensions used with modems and facsimile machines can be pro-
grammed so that they will not receive any system-generated tones that would dis-
rupt data transmissions. In addition, these devices receive C.O. ringing pattern
instead of intercom ring pattern. Devices connected to an SLI card receive a dis-
connect signal upon termination.
DATABASE PRINTOUT
A copy of the customer database can be obtained by using PCMMC. This informa-
tion can be directed to a printer or the PC screen and may be done either on-site or
remotely. A complete database or specific data blocks may be obtained.
DIALED NUMBER IDENTIFICATION SERVICE (DNIS)
When DNIS service is provided on an incoming trunk the DCS 400si can route calls
based on the numbers received.
DIRECT IN LINES
Outside lines may be programmed to bypass the operator(s) and ring directly at
any station or group of stations.
DIRECT INWARD DIALING (DID) T1/COPPER
The DCS 400si can use local telephone company-provided DID service via a T1
span or D8UTK card. When programmed, anyone dialing a user’s personal num-
ber rings directly to that user’s office. DID calls to a busy station have the option to
return busy signal to the C.O. or return ringback to the C.O. When ringback is
selected, the called station receives off-hook ring. Multiple DID numbers can ring
the same extension or station group and display keysets show a DID directory
name when ringing if a name has been programmed. DID calls can be assigned to
the six ring plan destinations. This allows routing of DID calls that have different
destinations to be routed to other destinations at different times. DID calls that are
directed to ring a voice mail machine can be identified by a special digit (see Voice
Mail Integration). It is also possible to program E & M trunks to follow the DID
translation tables, allowing the system to use both way DID type service. DID pass
through also allows DID digits to be repeated on an outgoing trunk. This permits
DID calls to be sent to a second system while the DID service is at one location.
DIRECT INWARD SYSTEM ACCESS (DISA)
Users can call in on specific DISA lines at any time, input a security code and
receive system dial tone or a music source. Users can now place internal calls or if
permitted, calls using C.O. lines. The caller must have a tone dial phone and know
his/her DISA security code. DISA lines can be used as both way lines or incoming
only. The C.O. lines used for DISA must have disconnect supervision. The require-
ment to put in a DISA security code can be disabled if desired.