NEC nd-20292 manual Chapter

ND-20292

APRIL, 1990

CHAPTER 8

VOICE MAIL INTEGRATION

TABLE OF CONTENTS

SECTION	DESCRIPTION		PAGE
810	GENERAL		800-l
820	SPECIFICATIONS
820.1	General Information		800-l
820.2	Signaling	Parameters	800-l
820.3	Additional	Functions	800-l
820.4	Hardware	Requirements	800-2
820.5	Hardware	Installation	800-2

830PROGRAMMING

830.1Required Programming 800-2

830.2Recommended

Programming800-2

SECTION 810

GENERAL

The Voice Mail Interface ETU (VMI-El provides the Electra Mark11 Digital Telephone System with the ability to support selected Voice Mail and/or dictation equipment, or Single Line Telephones. The types of

equipment and the methods of connection will determine the level of integration.

The VMI-E ETU will support (when used with Voice Mail equipment that provides the following features):

a. Internal access to a Voice Mail system via Hunt Group.

b.In Band Message Waiting Indications (Set and Cancel).

c.Direct access to the Voice Mail system by an outside party.

d.Call placement by the Voice Mail System.

e.DTMF controlled dial dictation equipment.

f.Single Line Telephones.

g.Modems.

SECTION 820

SPECIFICATIONS

820.1 GENERAL INFORMATION

The VMI-E ETU provides four discrete, two way

communications channels that are used for interfacing a Voice Mail system, dictation equipment, Single Line Telephones, or modemS. Each VMI-E ETU channel is equipped with a DTMF generating circuit which sends DTMF signaling to the equipment. DTMF signaling allows telephones in the system to communicate with the Voice Mail or dictation equipment via dial pad.

820.2 SIGNALING PARAMETERS

Signal timing parameters are assigned to the VMI-E ETU channels via programming of the Electra Mark11 system.

NOTE: Dial Pulse (Rotary) Signaling is not supported by the VMI-E ETU.

820.3 ADDITIONAL FUNCTIONS

In addition to voice path and signaling functions, the VMI-E ETU provides ringing signal control and a path to the MFR-EA ETU. This allows certain Voice Mail

equipment to dial internally for Voice Message delivery (call placement), access outside lines, and the setting and cancelling of Message Waiting indication using in-band DTMF signaling.

If an incoming DIT call is forwarded to a VMI-E

channel, the original extension number can be automatically sent to the VMI-E ETU channel using

in-bound DTMF signaling after the Voice ,Mail Equipment answers the call. This additional function is a programmable option. (CPU-EB3 ETU or higher revision level is required.)

NOTE 1: The VMI-E ETU is designed to pass access codes from the Voice Mail Equipment, for

handling Voice Message Waiting Indications.

NOTE 2:. The Voice Mail system must be capable of providing 2 different access codes, followed by the extension number of the associated

station. One code is used to set the

Message Waiting indication, while the second code is used to cancel it.

NOTE 3: Default Voice Mail Message Waiting access codes are 541xxx to set and 54*xxx to cancel (xxx is an extension number) a Message Waiting indication.

800 - 1