џWPCL ћџ2BJ|xа АH аа АА X агга ХА6p&А6p&Х аеЄ† а Hр аааУ Уб cмˆ4 PŽТ б Fascicle VII.2 Р-Р Rec. U.4 PAGE1 Єее~† а HH аааУ Уб cмˆ4 PŽТ бPAGE2 Fascicle VII.2 Р-Р Rec. U.4 ~еа HH ааЬџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџHpи P Ј XА`ИhР!(#џџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџЬаа X  аУ Уб cмˆ4 PŽТ бRecommendation U.4 Ср8=Сб cмˆ4 PŽТ бEXCHANGE OF INFORMATION REGARDING SIGNALS Ср8:СDESTINED TO BE USED OVER INTERNATIONAL CIRCUITS Ср8<СCONCERNED WITH SWITCHED TELEPRINTER NETWORKSФ Ф Ср8;СУУб cмˆ4 PŽТ б(former CCIT Recommendation E.4, Geneva, 1956;ФФ Ср8<СУУmodified at New Delhi, 1960 and Geneva, 1972)ФФ аЬџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџHјP Ј XА`ИhР!(#џџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџЬаТа ТThe CCITT,ЦЦ аЬџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџHpи P Ј XА`ИhР!(#џџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџЬаУУconsidering а H аФФС С(a)СpСthat certain signals and certain characteristics of signals used in the international telex service have been standardized in Recommendation U.1; а H аС С(b)СpСthat certain Administrations have introduced automatic telex transit switching facilities based upon the signalling standards shown in Recommendation U.1; а H аС С(c)СpСthat standardized signals for the European switched network for the public telegram service (gentex network) are advocated in Recommendation U.30; а H аС С(d)СpСthat in view of the foregoing an exchange of information regarding the precise nature of the signals proposed to be used in the aboveР-Рmentioned services by interested Administrations would be very useful; С С(e)СpСthat certain Administrations have already supplied such details regarding their telex services in a useful form (see supplements to the documents of the VIIIth Plenary Assembly of the CCIT, and subsequent Plenary Assemblies of the CCITT), УУunanimously recommends ФФС Сthat Administrations concerned in the international telex service and gentex network be invited to supply to the CCITT timeР-Рsequence diagrams showing in each case the signals at present transmitted or proposed to be transmitted over the international circuit for incoming calls. The diagrams should show not only the sequence and characteristics of the signals, but also the timing tolerances to be expected. The diagrams should show the signalling conditions applicable to transit as well as to terminal calls, including any conversion of the signals that are received from the destination network.