TIA/EIA-732-620:2001

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Cellular Digital Packet Data (CDPD) System Specification Message Handling Service

Published By	Publication Date	Number of Pages
TIA	2001	22

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Description

Introduction

This Part is directed towards Cellular Digital Packet Data
(CDPD) Service Providers intending to build or purchase equipment
for use in the CDPD internal network. This Part does not directly
affect CDPD subscribers or Mobile End System (M-ES)
manufacturers.

CDPD Message Handling Services provide a generic message store
and forward service that is utilized by other CDPD Network Support
Services (Part 630) and some CDPD Network Application Services. The
Message Handling Service is based on standards published in 1988:
[ISO-10021-1-7] and [CCITT-X.400].

The [CCITT-X.400] Message Handling System (MHS) recommendations
provide message exchange by means of a Message Transfer System
(MTS) consisting of a series of Message Transfer Agents (MTAs) that
are responsible for relaying a message from an originator's User
Agent (UA) to a recipient's UA. This specification is aligned with
the 1993 issue of the Industry/Government Open System
Specification (IGOSS) [IGOSS-1].

This Part specifies the MHS requirements in support of CDPD
Network Support Services and CDPD Network Application Services.
Individual service provider networks may wish to utilize X.400 as a
foundation to offer additional services. Additional MHS
requirements (if any) needed to support such additional services
are outside the scope of this specification.

Additional information