1、INTERNATIONAL TELECOMMUNICATION UNION)45G134 % TELECOMMUNICATIONSTANDARDIZATION SECTOROF ITU4%,%0(/.%G0G0.%47/2+G0G0!.$G0G0)3$./0%2!4)/. G0G0.5-“%2). G0G02/54).!.$G0G0-/“),%G0G03%26)#%/0%2!4).G0G002/#%$52%3G0G0&/2#!2$0(/.%3)45G134G0G0RecommendationG0G0% (Extract from the “LUEG0“OOK)NOTES1 ITU-T Reco
2、mmendation E.133 was published in Fascicle II.2 of the Blue Book. This file is an extract from theBlue 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 version and copyright conditions r
3、emain 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 reproduced or utilized in any form
4、 or by any means, electronic ormechanical, including photocopying and microfilm, without permission in writing from the ITU.Fascicle II.2 - Rec. E.133 1Recommendation E.133Fascicle II.2 - Rec. E.133OPERATING PROCEDURES FOR CARDPHONES1 PreambleCardphones are payphones that accept cards as a means of
5、payment. Many Administrations have deployedcardphones that accept a variety of card types and technologies. (For further definition of CCITT-recommended creditcard types, see Recommendation E.118 on the automated international telephone credit card system.) Cardphonesprovide an attractive alternativ
6、e to users through added convenience and payment options. The service also providesbenefits to Administrations both economic and operational.Prolifertation of cardphone terminals and technologies may result in a multiplicity of customer operatingprocedures. The purpose of this Recommendation is to o
7、ffer guidelines that will:1) facilitate customer convenience,2) ensure ease of use through a common sequence,3) standardize operating procedures to aid Administrations achieve lower equipment costs and customerinstruction costs,4) increase revenues for Administrations.2 Operating sequenceThis sectio
8、n defines the sequence of actions in setting up a call using a cardphone. Under each step there maybe further points of recommendation or preference, or additional comments.2.1 Step 1: lift handsetComment:For a loud speaking telephone, step 1 is the action equivalent to going off-hook.2.2 Step 2: aw
9、ait signal to payPreferred:It is preferred to have the dial tone precede payment, but acceptable for it to follow Step 3.Comment:The signal may be the dial tone, some other signal or both, e.g. display announcement.2.3 Step 3: present means of paymentRecommended:If a cardphone also allows payment by
10、 coins, initial payment should be in Step 3.When a prepaid card is used the remaining value of the card should be displayed before use.When a card is successfully read and is verified as satisfactory, the customer should be given confirmation.When a card is determined to be invalid, the user should
11、be so informed, e.g. tone, display or announcement.2 Fascicle II.2 - Rec. E.133If further information. such as a personal identification number (PIN), is required, it should follow after thecard is read.Comment:A card may or may not be retained by the terminal during some or all of a call set-up and
12、 connection.The procedure for dealing with an apparently invalid card is not within CCITT areas of responsibility.2.4 Step 4: dial numberRecommended:After verification, the required number can be dialled.If the terminal has a display, it should not display the PIN or other personal access digits.Pre
13、ferred:Step 4 may precede Step 3, but the order given here is preferred.2.5 Step 5: conversation or failure of call attemptRecommended:If the card is about to expire, the customer should be given a warning (e.g. tone, display) and reasonable time (minimum 10 seconds) to either terminate the call or
14、to insert an appropriate means of payment.2.6 Step 6: terminationRecommended:Replacing the handset terminates the call.Comment:Where technically possible, when a credit card is used, the call value or cost could be displayed.If the cardphone has a “next call” feature, its operation terminates a curr
15、ent call without the need to present a means of payment again. The remaining value of a prepaid card should be displayed.2.7 Step 7: retrieval of cardRecommended:If a card is retained by a terminal during a call, the terminal should automatically eject the card when thehandset is replaced. In the ca
16、se of special equipment, going on-hook is the equivalent step.Preferred:If a card leaves the users hand during the payment procedure, a method of reminding the user to remove thecard should be provided.Comment:A prepaid card should carry some indication of the remaining value on the card itself.Note
17、 A tabular summary and an SDL description of the procedure are contained in Annex A. The SDLdiagram is provided as reference for further study and is not a complete description of the operating procedures. Forexample, differences in the status found in the tabular summary, i.e. under the headings “R
18、ecommended”, “Preferred“and “Comment”, are not stated in the SDL diagram.3 Glossary of termsprepaid cardA card carrying a set amount of unit or monetary value that can be used for telephone purposes. The card isdecremented based on use and can be either thrown away or re-valued, depending on the tec
19、hnological attributes of thecard.Fascicle II.2 - Rec. E.133 3ANNEX A(to Recommendation E.133)Human factors cardphone operating procedurestabular summarySteps User action User options System reaction System options Status1 Lift handset With loud speakingtelephone, going offhook is equivalentComment2
20、Await signal to pay Dial tone shouldprecede paymentThis step may followstep 3Signal may be dialtone, display orotherPreferredCommentComment3 Present means ofpaymentIf used as coinphone, paymentshould be made atthis stepRemaining value ofprepaid card shouldbe displayed to thecustomerCustomer should b
21、egiven confirmationof successful cardreadIf PIN is required itshould be input afterthe card is readCard may or maynot be retainedduring part or all ofcallReaction to invalidcard handingprocedures is up toAdministrationsRecommendedRecommendedRecommendedRecommendedCommentComment4 Dial number If PIN or
22、 personalaccess digits arerequired, theyshould not bedisplayedStep 4 may precedestep 3 but the ordergiven here ispreferred (e.g.restricted use cards)RecommendedPreferred4 Fascicle II.2 - Rec. E.133Steps User action User options System reaction System options Status5 Conversation orfailure of callatt
23、emptCustomer should begiven anopportunity toprolong the callThe system shouldgive a warning andoptions in case ofexpiring means ofpaymentRecommended6 TerminationCustomer may begiven the option ofa next call featureReplaced handsetterminates callThe valueremaining on theprepaid card shouldbe displaye
24、dCustomer could beshown value or costof credit card callNext call featureallows for sequencecalling withoutpresenting means ofpayment againRecommmendedCommentRecommendedComment7 Retrieval of card If card is retained,terminal shouldautomatically ejectcard at callcompletionCustomer should bereminded if cardnot removed fromterminal at callcompletionA prepaid cardshould carry someindication of theremaining value onthe card itselfRecommendedPreferredCommentFascicle II.2 - Rec. E.133 5
