Programming instructions

DXP Plus Programming Instructions
MM-123
E&M DNIS Line
Description:
Dialed Number Identification Service (DNIS) is a Tl service feature for E&M lines. Long
distance carriers offer DNIS as a feature to dial 800 and dial 900 lines. DNIS identifies the
numbers that callers dial to reach an internal telephone system. Businesses served by a dial 800
or dial 900 service allow calls to ring on any available line within an assigned block of lines and
then have their internal telephone system process the DNIS information to route the calls to
their proper destinations.
The common carrier supplies DNIS information as DTMF digits. When the DNIS feature is
combined with the Automatic Number identification (ANI) feature, the common carrier delimits
the ANI information from the DNIS routing information with the asterisk (%) tone so that the
DXP Plus system can process each portion properly.
The DXP Plus uses information that you program in the DID/DNIS translation table to route the
call to the proper intercom number. The system also sends the called number information to the
SMDR/SMDA line report and makes the information available to devices that are connected to
the DXP Plus’s Open Architecture Interface (OAI).
As a single service, if the call routes to an LCD speakerphone, the speakerphone’s display
shows the name that you programmed in the DID/DNIS translation table. If you have
programmed no name there, the display shows the DNWDID block name that you assigned to
the DID/DNIS block. If you have programmed no name there, the display shows the processed
DNIS digits. (As a DNIS/ANI combined service, the display shows the processed AN1 digits.)
E&M DNIS lines access the Direct Inward System (DISA) feature when the DNIS digits
translate into the DISA access code.
Since the DXP Plus system supports the DNIS only on tone dial lines, it supports both wink
start and delay start protocols but does not support the immediate start protocol.
Programming:
Program the line type to be E&M DINS using the Section 8. I.2 procedure.
Program the DID/DNIS translation table using the Section 8.4.8 procedure.
Program the E&M DNIS tie line attributes using the Section 8.4.7 procedure.
Line Features Programming 8-3