12.Proposed revisions to Recommendation M.1375

     MAINTENANCE OF INTERNATIONAL DATA TRANSMISSION SYSTEMS
         OPERATING IN THE RANGE 48 kbit/s TO 64 kbit/s

       Replace the existing text of section 3.7 with the following:

       "When an international satellite section includes a satellite  link  then
it may be possible to perform long RF loop measurements, including  the  up/down
link of the satellite,  if  such  measurements  are  allowed  by  the  satellite
transponder configurations, i.e, if the earth station can monitor its own transmission. 
Such measurements, made in loop from the customer premises, the  TIC or from the 
earth station should be compared with similar loop measurements  made  when  the
circuit functioned normally. Such measurements should be made before international 
cooperation is sought to test the  international  section,  but  should  not  be
substituted for, or compared directly with, unidirectional measurements."




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