1、INTERNATIONAL TELECOMMUNICATION UNION)45G134 (2) that Administrations should make arrangements for their offices to apply these provisions.1 General1.1 The gentex network is made up of telegraph offices, switching centres and telegraph channels, interconnectingthe offices to switching centres and th
2、e switching centres to each other.1.2 The gentex network is operated by fully automatic switching.1.3 Gentex signalling shall be in accordance with CCITT Recommendations relative to telegraph switchingtechnique.2 Call-numbers and answer-back codes2.1 Unless other arrangements are made, the call-numb
3、er dialled by a gentex office to call a gentex office inanother country is made up of: the prefix giving acces to the called country from the calling country; the call-number of the called office, which must comprise figures only, up to a maximum of 8 figures;the call from the national network or an
4、other number especially selected for the purpose.2.2 The answer-back codes of the equipment used in the genetex service are made up of 20 signals.2.3 The composition of answer-back codes shall be in accordance with the provisions of Recommendation F.21.3 Equipment of positions in telegraph offices3.
5、1 Transmitting or receiving positions in the gentex service shall be equipped with tape-printing or page-printingteleprinters using International Telegraph Alphabet No. 2, possessing an answer-back unit and able to work, ifnecessary, in simplex.3.2 Positions shall be equipped for the following: the
6、setting-up of calls; the clearing of calls; reception of the bell (figure J) signal; an alarm or transmission of the clearing signal if the paper runs out.3.3 As far as possible, these positions shall also be equipped to signal the following: equipment out of service; tape broken; faulty tape feed.3
7、.4 In an office, the positions used in the gentex service can be grouped into those specializing in transmission andthose specializing in reception. Administrations shall arrange this specialization so that the incoming grade of serviceshall not be less than the CCITT recommended limits.2 Fascicle I
8、I.4 - Rec. F.203.5 Both-way and incoming-only positions in the same office shall all have a common call-number. When one ofthese positions is engaged or faulty, a call arriving at that office shall be directed to a free position in the same group.4 Routing lists4.1 All countries taking part in the g
9、entex service shall draw up a routing list containing information about therouting of traffic, and shall supply this list to the ITU for distribution to the other countries concerned. This list shallcomprise:a) the telegraph offices connected to the gentex network. The sign shall precede the name of
10、 every officetaking part in telegram transmission only, but available for a direct call when service correspondence has tobe exchanged;b) offices that, while not connected, normally deal with a fair amount of international traffic.4.2 Routing lists should be of the A4 size (210 297 mn) and should co
11、ntain the following information:a) in the first column, the alphabetical list of the offices chosen in accordance with 4.1 above (names oftelegraph offices connected to the gentex network are in heavy type);b) in the second column, the call-number of the gentex office to be called for routing traffi
12、c to the officeshown in the first column, with no restriction sign (a space is left in this column for inserting the prefix orprefixes to obtain access to the country concerned);c) in the third column, the answer-back codes of the offices connected to the gentex network, or of the gentexoffice servi
13、ng an office that is not connected to this network (without the characteristic letter or letters ofthe specialized receiving positions);d) in the fourth column, the service hours of offices connected to the gentex network or of the gentex officeserving an unconnected office, or in the indication off
14、ice which merely transmits; service hours are given inlocal time. Some office work different hours on Sundays and public holidays, in which case the column issub-divided and a list of public holidays is given at the beginning of the list. The abbreviations used in thiscolumn have the following meani
15、ngs:N = office permanently open (day and night),P = office with extended service, = office closed;e) in the fifth column, the name of the gentex office that should be called for alternative routing when theoffice given in the third column is closed, out of order or engaged. This information may also
16、 be providedin the preliminary note.4.3 This list shall be preceded by a preliminary note indicating the routing of telegrams to offices not mentioned inthe list.4.4 When certain important gentex offices possess specialized positions to deal with service notes and advices, orspecialized positions fo
17、r the reception of fault notices, the call-numbers and answer-back codes of such positions shallappear in an annex to the routing list.4.5 If a gentex exchange is equipped with an automatic test-phrase transmitter (with or without distortion) the call-number of such a transmitter shall also be indic
18、ated in this annex.4.6 Examplex of the first part of a routing list and this annex appear in Tables 1/F.20 and 2/F.20 respectively.Fascicle II.4 - Rec. F.20 3TABLE 1/F.20 GERMANY (Fed. Rep. of)Central gentex desservant le bureauGentex office serving the officeCentral gntex que sirve la oficinaDtourn
19、ementen cas de clturedu service,Heures de service (H.E.C.)Service hours (C.E.T.)Horas de servicio (H.E.C.)doccupationou de drangementdu central gentexBureau tlgraphiqueTelegraph officeOficina telegrficaPr-fixePre-fixPre-fijoNdappelCallNo.N. dellamadaIndicatifAnswer-back codeDistintivoLundiauVendredi
20、MondaytoFridayDe lunesaviernesSamediSaturdaySbadoDimancheset joursfrisSundaysandholidaysDomingosy dasfestivosAlternativerouting when thegentex officeis closed, engagedor out of orderDesviacinen caso de cierredel servicio,de occupacino de averade la central gntex1234a4b4c5AachenAalen, WuerttAchern, B
21、adenAhrensburgAlfeld, LeineAlsdorf, RheinlAlsfeldAltena, WestfAltoettingAmberg, OberpfAndernachAnsbach, MittelfrArnsberg, WestfArolsenAschaffenburgAugsburgBacknangBad AiblindBad BerleburgBad Ems83117411751120712031*91119031*8311491131113031*56116511441161116031*3811941140714031*531171117031*51115031
22、*321144118311 AACHEN D7411 ULM D7511 OFFBG D2071 HAMB D2031 HAMB D9111 HAN D9031 HAN D8311 AACHEN D4911 FULDA D3111 DTMD D3031 DTMD D5611 TRAUN D6511 RGSB D4411 KBLZ D6111 NBG D6031 NBG D3811 MESCH D9411 KASSEL D4071 FFM D4031 FFM D5311 AUGSB D7111 STGT D7031 STGT D5111 MCHN D5031 MCHN D3211 SIEGEN
23、D4411 KBLZ DNN07-22NNN07-22N07-22NNN07-22NNNNNN07-22NNN07-22NNN07-22N07-20NNN07-22NNNNN07-22NNN07-19NNN07-21N07-20NNN07-22NNNNN07-22N7711 FREIB D4811 GSSN D5111 MCHN D5031* MCHN D3111 DTMD D3031* DTMD D3111 DTMD D3031* DTMD D* Positions de rception avec tlimprimeurs sur page Receiving positions with
24、 page-printers Posiciones de recepcin conteleimpresores en pgina.4 Fascicle II.4 - Rec. F.20TABLE 2/F.20NUMROS DAPPEL DES POSITIONS SPCIALISES EN RP. FD. DALLEMAGNECALL NUMBERS OF SPECIALIZED POSITIONS IN FED. REP. OF GERMANYNMEROS DE LLAMADA DE LAS POSICIONES ESPECIALIZADAS EN REP. FED. DE ALEMANIA
25、ServiceNumrodappelTexte des metteurs dindicatifsServiceCallNumberText of answer-back codesServicioNmerode llamadaTexto de los transmisores de distintivo1Position de renseignement Information position Posicin deinformacin:Frankfurt am Main . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
26、Hamburg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Position de rception des avis de drangement Position forreception of faulty notices Posicin de recepcin de avisosde avera:Frankfurt am Main . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Hamburg . . .
27、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Position de mesure de la distorsion arythmique Position forthe measurement of start-stop distortion Posicin de medidade la distorsin arrtmica:Frankfurt am Main . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Hamburg
28、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .240582058405120514054205434058 FFM INF2058 HAMB INF4051 FFM TCHN2051 HAMB TCHN410961 TPRMPL210961 TPRMPLEmetteur central de texte avec distorsion Central transmitterof text with distortion Transmisor central de texto condis
29、torsin:Frankfurt am Main . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Hamburg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Emetteur central de texte sans distorsion Central transmitterof text without distortion Transmisor central de texto condistor
30、sin:Frankfurt am Main . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Hamburg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4041204140452045pas dmeteur dindicatifno answer-back codeno hay transmisor de distintivo5 Telegram routing5.1 Telegrams to an of
31、fice that, whether or not connected to the gentex network, appears in the routing list shall berouted using the call number shown in the List.5.2 Telegrams to an office that does not appear in the routing list shall be routed in accordance with the instructionsgiven at the beginning of the routing l
32、ist of the country in which the office is located.Fascicle II.4 - Rec. F.20 56 Overflow6.1 Administrations may make arrangements for calls to be automatically routed to overflow positions when all thereceiving positions of a called office are busy.7 Prohibition of communications with telex subscribe
33、rs in other countries7.1 An office connected to the gentex network shall not, under any circumstances, call a telex subscriber in anothercountry. Where possible this prohibition shall be effected by the switching equipment.7.2 Arrangements should also be made to prevent telex subscribers from obtaining access to gentex offices.8 Operation of the gentex service8.1 The gentex service shall be operated in accordance with provisions in Recommendation F.1.
