INTERNATIONAL  TELECOMMUNICATION  UNION

		     ITU-T RECOMMENDATION SUMMARY


Rec. No. : D.91

Title :	Transmission  in  encoded  form  of  maritime  
	telecommunications accounting information

Study Group : III - Tariff and Accounting Principles

Version : Revised

Date of adoption : 1991

Notes :	


Under the provision of Recommendation D.90, Administrations engage in 
international accounting for radiocommunications handled each month.

A growing number of Administrations are processing this monthly 
international accounting data using computer based accounting systems. 
Information is drawn from traffic history tapes or manually encoded 
from data such as inward international accounts and statistical 
summaries prepared by manual abstraction from copies of traffic 
tickets.

It is usual at present to complete computer processing by producing 
conventional printed accounts following the specifications described 
in the various accounting Recommendations (D.90). Where the receiving 
Administration also uses computer facilities, however, this 
information has to be re-encoded for processing through its system.

Transmission of data in encoded form avoids the decoding/re-encoding 
step. It also offers a faster transfer of information than by printed 
forms through the mail. The latter remains true even if the forwarding 
Administration has prepared the data by manual/mechanical means.

The aim of  Recommendation D.91 is:

     -  To enable Administrations using computer based accounting 
	systems to transfer information to each other in encoded 
	form, without the need for decoding into conventional printed 
	form and subsequent encoding into machine-readable form.

     -  To enable other Administrations, if they so desire, to benefit 
	from the greater efficiency of speedier transfer of 
	information to them and to prepare themselves for the 
	introduction of computer working by introducing transmission 
	of data in encoded form in advance of installation of a 
	computer.

     -	To facilitate provision of printed output from computer based 
	systems in a format suitable for manual/mechanical processing 
	where it is to be forwarded to Administrations not using 
	computer facilities.

     -  To facilitate provision of printed output from 
	manual/mechanical accounting systems in a format suitable for 
	data encoding where it is to be forwarded to Administrations 
	employing computer processing.



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