Ccitt the International Telegraph and Telephone Consultative Committee
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(ITU) ﻟﻼﺗﺼﺎﻻﺕ ﺍﻟﺪﻭﻟﻲ ﺍﻻﺗﺤﺎﺩ ﻓﻲ ﻭﺍﻟﻤﺤﻔﻮﻇﺎﺕ ﺍﻟﻤﻜﺘﺒﺔ ﻗﺴﻢ ﺃﺟﺮﺍﻩ ﺍﻟﻀﻮﺋﻲ ﺑﺎﻟﻤﺴﺢ ﺗﺼﻮﻳﺮ ﻧﺘﺎﺝ (PDF) ﺍﻹﻟﻜﺘﺮﻭﻧﻴﺔ ﺍﻟﻨﺴﺨﺔ ﻫﺬﻩ .ﻭﺍﻟﻤﺤﻔﻮﻇﺎﺕ ﺍﻟﻤﻜﺘﺒﺔ ﻗﺴﻢ ﻓﻲ ﺍﻟﻤﺘﻮﻓﺮﺓ ﺍﻟﻮﺛﺎﺋﻖ ﺿﻤﻦ ﺃﺻﻠﻴﺔ ﻭﺭﻗﻴﺔ ﻭﺛﻴﻘﺔ ﻣﻦ ﻧﻘﻼ ً◌ 此电子版(PDF版本)由国际电信联盟(ITU)图书馆和档案室利用存于该处的纸质文件扫描提供。 Настоящий электронный вариант (PDF) был подготовлен в библиотечно-архивной службе Международного союза электросвязи путем сканирования исходного документа в бумажной форме из библиотечно-архивной службы МСЭ. © International Telecommunication Union INTERNATIONAL TELECOMMUNICATION UNION CCITT THE INTERNATIONAL TELEGRAPH AND TELEPHONE CONSULTATIVE COMMITTEE RED BOOK VOLUME II - FASCICLE 11.4 TELEGRAPH SERVICES OPERATIONS AND QUALITY OF SERVICE RECOMMENDATIONS F.1-F.150 VI|F« PLENARY ASSEMBLY MALAGA-TORREMOLINOS, 8-19 OCTOBER 1984 Geneva 1985 COVERING NOTE GENERAL SECRETARIAT INTERNATIONAL TELECOMMUNICATION UNION - i a 21 February 1986 Subject_ .. : Addendum, to*.-■« Fascicle II.4t t PLACeQENfeVE, oes na;,ons CCITT Red Book, Malaga-Torremolinos,■ 1984 DUE TO AN ERROR IN THE PREPARATION OF FASCICLE II.4 , ANNEX B TO RECOMMENDATION F.121 WAS OMITTED. KINDLY INSERT THE ENCLOSED PAGES 261bis AND 261 ter IN YOUR COPY OF THE FASCICLE. Union Internationale des t6l6communications 1211 GEN&VE 20 8ui»«« - Switzerland - Suira ANNEX B (to Recommendation F. 121) Application of telephone prefixes, data transmission prefixes and telex access codes — definitions and descriptions Services and facilities normally provided by the telephone data or telex networks are otherwise defined in CCITT Recommendations and do not require any further definitions. This annex provides definitions and descriptions of some of the special facilities of Annex A. B.l Maritime enquiries (prefix 31) B.1.1 Function Prefix 31 may be used for special enquiries such as ship location, authorization, all telegrams, etc. B.2 Medical advice (prefix 32) B.2.1 Function Prefix 32 provides connection to national medical facilities (hospital, etc.) for obtaining medical advice or consultation. B.3 Technical assistance (prefix 33) B.3.1 Function For the Maritime Satellite Service, prefix 33 provides connection to the technical personnel of the coast earth station in case difficulties are experienced in establishing communication. For other maritime systems, further study is required. B.4 Collect calls (prefix 35) B.4.1 Function Prefix 35 should be used for calls, charges for which will be billed to the called party. The telephone operator will intervene in the call and should be provided with the information pertinent to the call. B.5 Credit card calls (prefix 36) B.5.1 Function Arrangements can be made with the Administration of certain coast stations or coast earth stations for payments for communications services to be made by a credit card. The arrangement is valid only for the services of the station with which it is made. An operator will intervene in the call and should be provided with details of the credit card. B.6 Time and charges requested at end o f call (prefix 37) B.6.1 Function Prefix 37 provides, upon completion of the call, either automatic printout of charging information, or connection to an operator who will supply charging information on the call. Fascicle II.4 — Rec. F.121 261 bis B.7 Medical assistance (prefix 38) B.7.1 Function If the condition of an ill or injured person aboard ship requires his urgent delivery ashore or the delivery of a doctor aboard ship, prefix 38 provides connection to the appropriate national authority responsible for this kind of activity. B.8 Maritime assistance (prefix 39) B.8.1 Function Prefix 39 provides connection to the appropriate national authority in case maritime assistance is required (e.g. tow, oil pollution). Note — This service is not clearly defined and may be interpreted differently by Administrations. Further study is required. B.9 Meteorological reports (prefix 41) B.9.1 Function Prefix 41 provides connection to the meteorological office for transmission of ship weather reports. B.10 Navigational reports from ships (prefix 42) B.10.1 Function Prefix 42 provides connection to a navigational office for transmission of information from ship on any hazards which could endanger safety of navigation (e.g. wrecks, derelicts, floating Obstructions, defective radiobeacons or light vessels, icebergs, floating mines, etc.). B.l 1 Ship position reports (prefix 43) B .ll.l Function Prefix 43 provides connection to an appropriate national or international centre collecting ship movement information for search and rescue (or other) purposes. B.l2 Information retrieval services (prefixes 5x) Further study is required. B.l3 Automatic test line (prefix 91) Prefix 91 provides automatic test of the ship earth station in telex and telephony mode. In the maritime satellite service the coast earth station will automatically transmit a “QUICK BROWN FOX” test message for telex and provide a loop-around test line connection in accordance with RecommendationO.il for telephony. Test lines for data transmission are for further study. B.l4 Commissioning tests (prefix 92) Prefix 92 is used in the Maritime Satellite Service for conducting commissioning tests of ship earth stations. B.l5 Operational coordination (prefix 95) Prefix 95 is used in the Maritime Satellite Service for operational communications between management and maintenance elements of the system. 261 ter Fascicle II.4 - Rec. F.121 INTERNATIONAL TELECOMMUNICATION UNION CCITT THE INTERNATIONAL TELEGRAPH AND TELEPHONE CONSULTATIVE COMMITTEE RED BOOK VOLUME II - FASCICLE 11.4 TELEGRAPH SERVICES OPERATIONS AND QUALITY OF SERVICE RECOMMENDATIONS F.1-F.150 V III™ PLENARY ASSEMBLY MALAGA-TORREMOLINOS, 8-19 OCTOBER 1984 Geneva 1985 ISBN 92-61-02021-6 © I.T.U. CONTENTS OF THE CCITT BOOK APPLICABLE AFTER THE EIGHTH PLENARY ASSEMBLY (1984) RED BOOK Volume I — Minutes and reports of the Plenary Assembly. Opinions and Resolutions. Recommendations on: — the organization and working procedures of the CCITT (Series A); — means of expression (Series B); — general telecommunication statistics (Series C). List of Study Groups and Questions under study. Volume II — (5 fascicles, sold separately) FASCICLE II. 1 — General tariff principles — Charging and accounting in international telecommunications services. Series D Recommendations (Study Group III). FASCICLE II.2 — International telephone service — Operation. Recommendations E.100-E.323 (Study Group II). FASCICLE II.3 — International telephone service — Network management — Traffic engineering. Recom mendations E.401-E.600 (Study Group II). FASCICLE II.4 — Telegraph Services — Operations and Quality of Service. Recommendations F.1-F.150 (Study Group I). FASCICLE II.5 — Telematic Services — Operations and Quality of Service. Recommendations F.160-F.350 (Study G roup I). Volume III — (5 fascicles, sold separately) FASCICLE III.l — General characteristics of international telephone connections and circuits. Recommenda tions G.l 01-G. 181 Study Groups XV, XVI and CMBD). FASCICLE III.2 — International analogue carrier systems. Transmission media — characteristics. Recommen dations G.211-G.652 (Study Group XV and CMBD). FASCICLE III.3 — Digital networks — transmission systems and multiplexing equipments. Recommenda tions G.700-G.956 (Study Groups XV and XVIII). FASCICLE III.4 — Line transmission of non telephone signals. Transmission of sound-programme and televi sion signals. Series H, J Recommendations (Study Group XV). FASCICLE III.5 — Integrated Services Digital Network (ISDN). Series I Recommendations (Study Group XVIII). Ill Volume IV (4 fascicles, sold separately) FASCICLE IV. 1 Maintenance; general principles, international transmission systems, international tele phone circuits. Recommendations M.10-M.762 (Study Group IV). FASCICLE IV.2 Maintenance; international voice frequency telegraphy and fascimile, international leased circuits. Recommendations M.800-M.1375 (Study Group IV). FASCICLE IV.3 Maintenance; international sound programme and television transmission circuits. Series N Recommendations (Study Group IV). FASCICLE IV 4 Specifications of measuring equipment. Series 0 Recommendations (Study Group IV). Volume V Telephone transmission quality. Series P Recommendations (Study Group XII). Volume VI (13 fascicles, sold separately) FASCICLE VI. 1 General Recommendations on telephone switching and signalling. Interface with the maritime mobile service and the land mobile services. Recommendations Q.l-Q.l 18 bis (Study Group XI). FASCICLE VI.2 Specifications of Signalling Systems Nos. 4 and 5. Recommendations Q.120-Q.180 (Study Group XI). FASCICLE VI.3 Specifications of Signalling System No. 6. Recommendations Q.251-Q.300 (Study Group XI). FASCICLE VI.4 Specifications of Signalling Systems R1 and R2. Recommendations Q.310-Q.490 (Study Group XI). FASCICLE VI.5 Digital transit exchanges in integrated digital networks and mixed analogue-digital