1、INTERNATIONAL TELECOMMUNICATION UNION)45G134 1 TELECOMMUNICATIONSTANDARDIZATION SECTOROF ITU%.%2!,G0G02%#/-%.$!4)/.3G0G0/.G0G04%,%0(/.%37)4#().G0G0!.$G0G03).!,).#,!53%3G0G0!00,)#!“,%G0G04/G0G0)45G134G0G034!.$!2$3934%-3,!.5!%G0G0$)4G0G0/2G0G0$)3#2)-).!4).$)4)45G134G0G0RecommendationG0G01 (Extract fro
2、m the “LUEG0“OOK)NOTES1 ITU-T Recommendation Q.104 was published in Fascicle VI.1 of the Blue Book. This file is an extract fromthe Blue Book. While the presentation and layout of the text might be slightly different from the Blue Book version, thecontents of the file are identical to the Blue Book
3、version and copyright conditions remain unchanged (see below).2 In this Recommendation, the expression “Administration” is used for conciseness to indicate both atelecommunication administration and a recognized operating agency. ITU 1988, 1993All rights reserved. No part of this publication may be
4、reproduced or utilized in any form or by any means, electronic ormechanical, including photocopying and microfilm, without permission in writing from the ITU.Fascicle VI.1 - Rec. Q.104 1Recommendation Q.104Fascicle VI.1 - Rec. Q.1041.4 LANGUAGE DIGIT OR DISCRIMINATING DIGIT1.4.1 Language digit (or l
5、anguage information)1.4.1.1 The language digit defined under 1.1.5 above indicates the service language to be used between operatorsin the international service, that is to say, the language to be spoken in the incoming international exchange by theincoming, delay and assistance operators when they
6、come on the circuit. The language digit (or information) must besent on all semi-automatic calls.1.4.1.2 The digit (or indicator) to be used to select the appropriate language is as follows:1 = French2 = English3 = German4 = Russian5 = Spanish6 available to Administrations for selecting a particular
7、 language7 provided by mutual agreement (in System No. 5, however,8 digit 7 is used on calls requiring access to test equipment)9 = reserve (see 1.4.2.2 below)1.4.1.3 The language digit (or information) is either:- sent by the operator to the outgoing equipment; in this case the operator must send i
8、t immediately beforethe national (significant) number1)of the called subscriber; or- sent automatically by the outgoing equipment.1.4.2 Discriminating digit (or discriminating information)1.4.2.1 In all automatic calls, the position in the sequence of numerical signals occupied by the discriminating
9、 digit(or information) is that occupied by the language digit (or information) in semi-automatic calls (seeRecommendations Q.102 and Q.107)._1)See definition in Recommendation Q.10.2 Fascicle VI.1 - Rec. Q.1041.4.2.2 The digit 9 (or its equivalent) in the list of language digits (or calling partys c
10、ategories) has been kept inreserve for use as extra discriminating information if required. Such use should be for a call with specialcharacteristics, but the digit 9 (or the equivalent information) must not be used merely to take the place of the digit 0(or its equivalent) in an automatic call2).1.
11、4.2.3 Combination 13 in the signal code of System No. 4 and System R2 and its equivalent in Systems No. 6 andNo. 7, as well as combination 7 in the signal code of System No. 5 serve as a discriminating digit (or information) oncalls to automatic testing equipment.1.4.2.4 In Signalling Systems No. 6
12、and 7, the equivalent of the combinations 11 and 12 may be used as adiscriminating digit (or calling partys indicator) on calls originated by a subscriber with priority (combination 11) oron data calls (combination 12).1.4.2.5 On all automatic calls the discriminating digit must be sent over the int
13、ernational circuit or signalling channelby the country of origin of the call, and this country has to arrange for the automatic insertion of the discriminatingdigit (or information)._2)For example, it might be thought useful to have an additional discriminating digit (or information) when a distinct
14、ion has to bemade between:a) automatic calls, andb) semi-automatic calls set up in the outgoing country directly by ordinary operators, in national exchanges and not byinternational operators in the international exchange, and arriving by the same group of national circuits as calls mentionedin a).S
15、uch a distinction might be necessary because:- in international accounts, calls mentioned in b) are dealt with as semi-automatic calls and are not to be metered by theinternational equipment.- for signalling, calls mentioned in b) are not accompanied by an end-of-pulsing signal.On Signalling System No. 5 the discriminating digit 9 may be used to indicate a data call by bilateral agreement.
