Nortel Networks DCT1900 manual Operational Concepts, Operational Environment

Technical Product Manual - DCT1900

System Description, System Overview

In Figures 2-1 & 2-2 the relevant products covered by this manual are marked in gray. The following items are recognized:

zDCT1900:

-	RE	: Radio Exchange
-	BS	: Base Station
-	PT	: Portable Telephone
-	CSM	: Cordless System Manager

zOther:

-	PBX	: Private Branch Exchange
-	MS	: Mobility Server
-	CO	: Central Office

2.1Operational Concepts

Operational Environment

The DCT1900 is designed for mobility within the defined coverage area of the system. If the defined coverage area of one system is too small, then in conjunction with the MS, several DCT1900 systems can be connected together to act as if they were one large system.

Environmental External Dependencies

The DCT1900 system, as shown in Figures 2-1 & 2-2 depends on the following external systems to provide the required services:

zPrivate Branch Exchange (PBX)

zMobility Server (MS)

zCentral Office (CO)

Functional External Dependencies

The following external systems provide the following functions:

zThe PBX is a switch, providing:

-Standard switching services

-Calling party identity

-Voice mail services

-Paging services

-Access point to the Public Switched Telephone Network (PSTN)

zThe MS is an adjunct to the PBX. It provides:

-In combination with two or more DCT1900 systems, the ability to roam freely between different locations.

-The ability to handover between different REs while in a call.

-The ability via a single number (Portable User Number) to reach users in geographically different locations.

-The means of configuring the MS and initializing and activating the Portable Telephones.

-The ability to dial in to the server and use your office extension, change you personnal settings and acces you voice mail.

-Message waiting indication

-Call Waiting

System-DCT1900/R8/mw	2-5
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