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1991-12-31
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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.