home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Internet Standards
/
CD2.mdf
/
ccitt
/
1992
/
f
/
f41.asc
< prev
next >
Wrap
Text File
|
1991-12-30
|
8KB
|
265 lines
IMPORT
R:\\ART\\W INTERNATIONAL TELECOMMUNICATION UNION
MF\\ITU.WM
F \*
mergeforma
t
CCITT F.41
THE INTERNATIONAL
TELEGRAPH AND TELEPHONE
CONSULTATIVE COMMITTEE
TELEGRAPH AND MOBILE SERVICES
OPERATIONS AND QUALITY OF SERVICE
INTERWORKING BETWEEN
THE TELEMESSAGE SERVICE
AND THE INTERNATIONAL PUBLIC
TELEGRAM SERVICE
Recommendation F.41
IMPORT Geneva, 1991
R:\\ART\\
WMF\\CCIT
TRUF.WMF
\*
mergeform
at
Printed in Switzerland
FOREWORD
The CCITT (the International Telegraph and Telephone Consultative
Committee) is a permanent organ of the International Telecommunication Union
(ITU). CCITT is responsible for studying technical, operating and tariff
questions and issuing Recommendations on them with a view to standardizing
telecommunications on a worldwide basis.
The Plenary Assembly of CCITT which meets every four years, establishes
the topics for study and approves Recommendations prepared by its Study Groups.
The approval of Recommendations by the members of CCITT between Plenary
Assemblies is covered by the procedure laid down in CCITT Resolution No. 2
(Melbourne, 1988).
Recommendation F.41 was prepared by Study Group I and was approved under
the Resolution No. 2 procedure on the 11 of March 1991.
___________________
CCITT NOTE
In this Recommendation, the expression "Administration" is used for
conciseness to indicate both a telecommunication Administration and a recognized
private operating agency.
F ITU 1991
All rights reserved. No part of this publication may be reproduced or utilized in
any form or by any means, electronic or mechanical, including photocopying and
microfilm, without permission in writing from the ITU.
PAGE BLANCHE
Recommendation F.41
Recommendation F.41
INTERWORKING BETWEEN THE TELEMESSAGE SERVICE AND
THE INTERNATIONAL PUBLIC TELEGRAM SERVICE
1 Introduction
1.1 The International Telecommunication Regulations (Melbourne, 1988), Article
4.3 c), deal with the requirement to provide at least a form of telecommunication
which is reasonably accessible to the public, including those who may not be
subscribers to a specific telecommunication service. Traditionally the
international public telegram service has been the most common means of filling
this need.
1.2 Resolution No. 6 (World Administrative Telegraph and Telephone Conference,
Melbourne, 1988) resolves that provision should be made to allow continued
availability of traditional services as perceived by the customer, although the
communication infrastructure used to provide that service may vary.
In continuing to provide a telegram-type service, Administrations should
agree either to operate a telegram service in accordance with Recommendation F.1,
a telemessage service in accordance with Recommendation F.40, both the telegram
and the telemessage services, or to come to some other bilaterally agreed
arrangement.
1.3 This Recommendation defines the procedure that shall be followed for
interworking between the telemessage service and the international public
telegram service, where Administrations provide one service or the other and no
other specific agreement has been reached.
2 Basic interworking principles
2.1 A service provider operating an international public telemessage service
shall provide the capability of operating in conjunction with the international
public telegram service in order to provide a replacement for ordinary private
telegrams at least.
2.2 Member Administrations will make separate operational arrangements to
ensure adequate handling of SVH, ETATPRIORITE, ETAT, OBS and RCT messages. Such
arrangements which may involve the use of the other telecommunication services
(e.g. telex) are not covered by this Recommendation.
2.3 In the absence of any other bilateral agreement, the relevant telegram
operational procedures defined in Recommendation F.1 shall apply in both the
telegram to telemessage and the telemessage to telegram directions, with the
exceptions described in S 3 below.
2.4 The charging and accounting principles for interworking between the
telemessage service and the international telegram service will be defined in the
D-Series Recommendations.
3 Operational procedures
3.1 If no other agreement exists, only F.31 format shall be used for the
transmission of messages between the Administrations concerned.
3.2 In the direction telegram to telemessage the service indication
TELEMESSAGE and the priority/tariff indicator CT shall be used.
3.3 In the same direction, special arrangement may be made for de luxe form,
in which case the service indication LXx shall be used as specified in
Recommendation F.50. No other special services or optional classes are admitted.
styleref head_footRecommendation F.41PAGE
5
3.4 In the telegram to telemessage direction, the origin Administration should
be aware of the 35 text line limit per message in the telemessage service as
defined in Recommendation F.40.
3.5 In the telegram to telemessage direction the rules laid down in
Recommendation F.1 for the counting of actual words shall apply, but the number
of chargeable words may be omitted from the preamble line and the pilot line may
show either the number of actual or chargeable words (at the discretion of the
origin Administration).
3.6 In the telemessage to telegram direction the wordcounts and their
presentation shall be in accordance with Recommendation F.1.
4 Service documents
4.1 In view of S 1.2 above Administrations should inform the Secretary-General
of their method(s) of providing a telegram-type service. The Secretary-General is
invited to include this information in the General information relating to the
operation of the international telegraph, data transmission and Telematic
services.
PAGE5 styleref head_footRecommendation F.41