1、CEPT T/TPH*E M 2326434 0030273 7 T/Tph 9 E Page 1 Recommendation T/Tph 9 (Lisbon 1965, revised Cannes 1983) USE OF STANDBY CHANNELS FOR ADDITIONAL TELEVISION TRANSMISSIONS Recommendation proposed by the “Telephone Operation and Tariffs” Working Group T/WG 2 (Tph) Text of the Recommendation adopted b
2、y the “Telecommunications” Commission: “The European Conference of Postal and Telecommunications Administrations, considering - that it is sometimes an advantage to occasionally use standby channels of international hertzin groups to provide additional television transmissions in cases where a perma
3、nent circuit would not be justified, that the form of switching in some multi-channel systems does not permit, in every case, free access to the emergency channel, that certain systems only permit this access for carrying out manuvres and preliminary lining up, - that the unavailability of the emerg
4、ency channel results in the running of risks of interruption of the normal trafic unless it is given absolute priority, O recommends - that the Administrations who consider the use of standby channels practicable advise the Broadcasting Organisa- - that they draw the attention of the Broadcasting Organisations to the fact that risks of interruption do exist (no that for these circuits with no priority the normal charges are nevertheless applied.” tions of the routes which are available for this purpose, priority), Edition of July 10, 1990
