Recommendation S.4

       Add the following new items 13), 14) and 15) in  1:

13)       . one or more combinations No. 10 in figure-case after the  call  is
established could trigger the transmission of a "conversation impossible" "CI" 
sequence of signals and/or a pre-recorded message from distant terminal (It should 
be noted that the combination No. 10 in figure-case could also be used to attract 
the operator's attention.).

14)    MMMM during a broadcast call, to signal the desire of the calling party to 
know those parties who cleared prematurely. See Recommendations U.44 and S.20.

Note - This sequence is to be recognized in letter shift mode only. A minimum of 4 Ms 
would clear a telex broadcast call, usage of a 5th or more Ms is a national matter.

15)    LLLL to signal the desire of the calling party to terminate the present call 
and to make a follow-on call as described in Recommendation U.43. Usuage of a 5th or 
more Ls is a national matter.

       This combination should be recognized in letter shift mode only.