1、STD-ITU-T RECMN F-182 BIS-ENGL 177b 4Ab257L Ob32237 ABT 9 INTERNATIONAL TELECOMMUNICATION UNION ITU=T TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU FA82 bis (I 0/96) SE RI ES F: N ON-TELE PHON E TELECOM M U N I CATI0 N SERVI CES Telematic services - Public facsimile service Guidelines for the supp
2、ort of the communication of documents using Group 3 facsimile between user terminals via public networks ITU-T Recommendation FA82 bis (Previously CCITT Recommendation) STD-ITU-T RECMN F-182 BIS-ENGL 177b D 48b2571 Ob32238 7Lb ITU-T F-SERIES RECOMMENDATIONS NON-TELEPHONE TELECOMMUNICATION SERVICES T
3、ELEGRAF“ SERVICE Operating methods for the international public telegram service The gentex network Message switching The international telemessage service The international telex service Statistics and publications on international telegraph services Scheduled and leased communication services Phot
4、otelegraph service MOBILE SERVICE Mobile services and multidestination satellite services F.1-F.109 F.1-F.19 F.20-F.29 F.30-F.39 F.40-F.58 F.59-F.89 F.90-F.99 F. 100-F. 1 O4 F.105-F. 1 O9 F. 1 10-F. 159 F.110-F.159 TELEMATIC SERVICES F. 160-F.399 . _ Public facsimile service F. 160-F. 199 Teletex se
5、rvice Videotex service General provisions for telematic services MESSAGE HANDLING SERVICES DIRECTORY SERVICES DOCUMENT COMMUNICATION Document communication Programming communication interfaces DATA TRANSMISSION SERVICES AUDIOVISUAL SERVICES ISDN SERVICES UNIVERSAL PERSONAL TELECOMMUNICATION HUMAN FA
6、CTORS F.200-F.299 F.300-F.349 F.350-F.399 F.400-F.499 F.500-F.549 F.550-F.599 F.550-F.579 F.580-F.599 F. 600-F. 699 F.700-F.799 F. 800-F. 849 F.850-F.899 F.900-F.999 For further details, please refer to ITU-T List of Recommendations. STDeITU-T RECMN F.182 BIS-ENGL 199b 48b2571 Ob32239 b5Z = FOREWORD
7、 The IT-T (Telecommunication Standardization Sector) is a permanent organ of the International Telecommunication Union (ITU). The IT-T is responsible for studying technical, operating and tariff questions and issuing Recommen- dations on them with a view to standardizing telecommunications on a worl
8、dwide basis. The World Telecommunication Standardization Conference (WTSC), which meets every four years, establishes the topics for study by the ITU-T Study Groups which, in their turn, produce Recommendations on these topics. The approval of Recommendations by the Members of the IT-T is covered by
9、 the procedure laid down in WTSC Resolution No. 1 (Helsinki, March 1-12, 1993). ITU-T Recommendation F.182 bis, was prepared by ITU-T Study Group 1 (1993-1996) and was approved by the WTSC (Geneva, 9-18 October 1996). NOTE In this Recommendation, the expression “Administration” is used for concisene
10、ss to indicate both a telecommunication administration and a recognized operating agency. O IT 1997 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 writin
11、g from the ITU. 1 Recommendation F.182 bis (10/96) 1 2 3 4 5 6 7 8 9 10 11 11 . STD-ITU-T RECMN F.182 BIS-ENGL 199b D 48b257L Ob322qI1 374 CONTENTS Scope References Abbreviations . General provisions . 4.2 Basic requirements 4.3 Standardized options . Network requirements Procedures for the transmis
12、sion of documents . Coding scheme . Operation Terminal identification . User terminals Directories 4.1 General Recommendation F.182 bis (10196) Page 1 1 1 2 2 2 2 3 3 3 3 3 4 4 STD-ITU-T RECMN F-182 BIS-ENGL L79b D 48b259L Ob3224L ZOO D SUMMARY This Recommendation defines the guidelines for the supp
13、ort of the communication of documents using Group 3 facsimile between user terminals via public networks and is intended to apply in those cases where an ROA or service provider does not wish to offer a Telefax 3 service as defined in Recommendation F. 182. This Recommendation is based upon existing
14、 Recommendation F. 182 but has been developed to reflect the changing telecommunications environment with regard to the provision of regulated “end-to-end” services. . Recommendation F.182 bis (10/96) 111 STD-ITU-T RECMN F-182 BIS-ENGL L99b 48b2571 Ob32242 147 Recommendation F.182 bis GUIDELINES FOR
15、 THE SUPPORT OF THE COMMUNICATION OF DOCUMENTS USING GROUP 3 FACSIMILE BETWEEN USER TERMINALS VIA PUBLIC NETWORKS (Geneva, 1996) 1 Scope 1.1 supporting the communication of documents using Group 3 facsimile. This Recommendation defines the guidelines which may be considered by ROAS or service provid
16、ers in 1.2 manually or automatically via telecommunication nehvorks across international boundaries. The communication of documents using Group 3 facsimile enables users to exchange documents either 1.3 The basic element of the correspondence between people is the page, as the smallest unit of text
17、treated as an entity. No restrictions shall exist as far as the user procedures for generation of the text or the positioning of text within the reproducible area on a page are concerned. 1.4 facsimile are dealt with in the T-Series Recommendations. Questions of an essentially technical nature conce
18、rning the communication of documents using Group 3 1.5 Provision for communication of documents using Group 3 facsimile may vary fiom one ROA to another. In some networks, the communication may be provided on an unassured basis and have no guarantee of the quality of transmission, transmission speed
19、, etc. For example, in some cases the call is treated in the same way as a telephone call. NOTE - If an ROA does not wish to follow the guidelines defined in this Recommendation, then consideration could be given to the use of Recommendation F. 182. 2 Refer en ces The following IT-T Recommendations
20、and other references contain provisions which, through reference in this text, constitute provisions of this Recommendation. At the time of publication, the editions indicated were valid. All Recommendations and other references are subject to revision; all users of this Recommendation are therefore
21、 encouraged to investigate the possibility of applying the most recent edition of the Recommendations and other references listed below. A list of the currently valid ITU-T Recommendations is regularly published. - ITU-T Recommendation F. 182 (1996), Operational provisions for the international publ
22、ic facsimile service between subscribers with Group 3 facsimile terminals (Telefax 3). IW-T Recommendation F. 180 (1 996), General operational provisions for the- international public facsimile service between subscribers terminals (Telefax). ITU-T Recommendation T.4 (1996), Standardization of Group
23、 3 facsimile terminals for document transmission. - - - ITU-T Recommendation T.30 (1996), Procedures for document facsimile transmission in the general switched telephone network. ITU-T Recommendation T.505 (1994), Document application profile PM-26 for the interchange of enhanced structure, mixed c
24、onlent documents in processable and formatted forms. - 3 Abbreviations This Recommendation uses the following abbreviations: IW-T ROA Recognized Operating Agency International Telecommunication Union - Telecommunication Standardization Sector Recommendation F.182 bis (10/96) 1 - STD-ITU-T RECMN F.18
25、2 BIS-ENGL 199b W iBb2571 Ob32243 083 M 4 General provisions 4.1 General The essential characteristic of the communication of documents using Group 3 facsimile is that it provides a basic level of compatibility between all terminals supporting the Group 3 capabilities. 4.2 Basic requirements a) The
26、basic level of compatibility is provided between any two terminals internationally so that they may communicate image coded information to each other. This is achieved by terminals complying with Recommendations T.4 and T.30; it is for each ROA or service provider to decide on the network(s) on whic
27、h the communication of documents using Group 3 facsimile will be camed. There is no restriction on the type of network to be used; it should be possible to extend the communication of documents using Group 3 facsimile to any number of countries; to permit private use options, or example encryption,
28、there is no technical limitation on the bit sequence of the users information that may be transmitted; a received Group 3 document can be printed or displayed as decided by the recipient and the terminal characteristics. If the document is printed, the receiving user will be hished with a document t
29、hat is identical with that produced by the sending user as far as its contents, layout and format are concerned; it is intended that support for the communication of documents using Group 3 facsimile requires no changes to the Recommendations for existing services or networks. b) c) d) e) f) 4.3 Sta
30、ndardized options 4.3.1 It is recognized that some users may need to use their Group 3 facsimile terminals to communicate internationally using features that are not included in the basic requirements. A number of IT-T standardized options have therefore been defined. However, the provision of any o
31、ption may lead to some degree of incompatibility and the number of standardized options has been restricted to those features which are listed below and for which a clear international need can be foreseen. The sending terminal ensures the transmission of documents using only those options that have
32、 been indicated as being available at the receiving terminal. 4.3.2 The standardized options provide means for: a) b) subscriber identification (Recommendation T.30); c) d) higher resolutions (Recommendation T.4); e) f) g) polling (Recommendation T.30); h) i) j) k) Sub-addressing (SUB) (Recommendati
33、on T.30); 1) coded character mode (Recommendation T.4); m) Binary File Transfer mode (BFT) (Recommendation T.4); n) Basic Transfer Mode (BTM) (Recommendation T.4); o) Document Transfer Mode (DTM) (Recommendation T.4); p) Electronic Document Interchange (EDI) (Recommendation T.4); higher data signall
34、ing rates (Recommendation T.4); Error Correction Mode (ECM) (Recommendation T.4); optional coding schemes (Recommendation T.4); optional page sizes (Recommendation T.4); Selective Polling (SEP) (Recommendation T.30); Password for polling (PWD) (Recommendation T.30); Sender Identification (SID) (Reco
35、mmendation T.30); 2 Recommendation F.182 bis (10/96) STDmITU-T RECMN F.182 BIS-ENGL 199b = 48b2591 Ob32244 TLT D q) r) s) NOTE - As the communication of documents using Group 3 facsimile evolves and further market and user requirements simple mixed mode (Recommendation T.4); processable mode 26 (Rec
36、ommendation T.505); digital network operation (Recommendation T.3 O). are identified, there is a continuing need for further study and consequently changes may be required to the above list. 4.4 Communication between terminals takes place at the level of compatibility at, or nearest to, the paramete
37、rs initially selected by the originating user. The determination of this level is carried out automatically via the premessage procedures. This takes into account aspects of the quality of transmission media available in the participating networks and the options available on the receiving terminal.
38、 5 Network requirements 5.1 documents using Group 3 facsimile is to be provided. It is the responsibility of each ROA or service provider to decide on which network(s) the communication of 5.2 the appropriate ITU-T technical Recommendations. If the Integrated Services Digital Network is used, the co
39、mmunication of documents using Group 3 facsimile will be supported as appropriate. 5.3 Terminals on any public network which support the communication of documents using Group 3 facsimile are able to communicate automatically with terminals supporting the communication of documents using Group 3 Fac
40、simile on any other public network. The communication of documents using Group 3 facsimile may be supported over all public networks using 6 Procedures for the transmission of documents The technical procedures for transmitting documents using the communication of documents using Group 3 facsimile a
41、re given in Recommendation T.30. 7 Coding scheme 7.1 dation T.4. The basic coding scheme for the communication of documents using Group 3 facsimile is given in Recommen- 7.2 The optional image coding schemes are given in Recommendation T.4. 7.3 The optional character coding repertoire is given in Re
42、commendation T.4. 8 Operation 8.1 Support for the communication of documents using Group 3 facsimile in each country and the interconnection between countries or networks should use fully automatic switching so that it is possible for any user to reach any other user using hlly automatic selection.
43、8.2 It is recommended to allow the through connection of a call between terminals connected to a private automatic branch exchange (or similar systems) and those connected to public exchanges used to provide support for the communication of documents using Group 3 facsimile. 9 Terminal identificatio
44、n 9.1 On the PSTN, an answering tone of 2100 Hz identifies connection to a non-voice terminal. Additionally, an automatic identification may be provided, see 9.3. ROAS and service providers may wish to consider recommending to users that the terminal identity is entered in the format described in 9.
45、3. Recommendation F.182 bis (10/96) 3 - STD-ITU-T RECMN F-182 BIS-ENGL L99b = 48b259L Ob32245 75b m 9.2 If the pages are printed, it is desirable for the identification of the transmitting terminal to appear at the receiving terminal, in the form of an identification line printed at the top of each
46、page received, in an area 10 mm deep extending across the whole width of the page. This area may be either inside or outside the nominal A4 page, in accordance with the option selected by the user. 9.3 The terminal identification consists of up to 20 characters (including only digits and spaces). Fo
47、r the PSTN and the ISDN, the identification is the international telephone number and the format is as follows: plus sign, country code, space, area code, space, users number. The coding arrangements are defined in Recommendation T.30. The form of the terminal identification on other networks is for
48、 further study. 9.4 At the transmitting terminal, the identification of the receiving terminal may be displayed or printed. 10 User terminals 10.1 A range of data signalling rates has been defined as follows: 10.1.1 Public switched telephone network Terminals on the public switched network are able
49、to operate at the basic data signalling rate of 4800 bids with fall-back to 2400 bit/s. In addition, higher data signalling rates may be provided. Details are given in Recommendation T.30. 10.1.2 If the Integrated Services Digital Network is used, the communication of documents using Group 3 facsimile will be provided as appropriate. Integrated Services Digital Network (ISDN) 10.1.3 Public data networks For further study. 10.2 Group 3 facsimile are listed in the following subclauses: 10.2.1 Group 3 facsimile terminals have the ability to send, receive and display documents
