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1991-12-31
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Recommendation U.10
EQUIPMENT OF AN INTERNATIONAL TELEX POSITION
(former CCIT Recommendation F.60; modified at New Delhi, 1960)
The CCITT,
considering
international telex position that
is a manual position in an international telex exchange and is used
to set up international telex calls should be so equipped as to
permit satisfactory operation in conformity with Recommendation
F.60 [1],
unanimously declares the following view
(1) An international telex position must be equipped in such a way as to
receive the clearing signal from both sides.
(2) It should not be possible to recall the operator of that position by a
signal to an established connection, except if Recommendation U.21 is applied.
(3) Precaution must be taken that, in the event of the operator of the
international telex position's delaying to remove the plug on reception of the
clearing signals, a new call from a subscriber on one network cannot pass to the
other network.
(4) When the call has been established, the answer-back signals of
equipment used at the intermediate telex positions must not be sent to line when
figure-shift D is received.
(5) The international telex position must be provided with equipment to
determine the chargeable time of calls controlled by these positions, this timing
equipment to be brought into operation in accordance with the Recommendation
cited in [2] but to be stopped on receipt of the first clearing signal.
References
[1] CCITT Recommendation Operational provisions for the international telex
service, Rec. F.60.
[2] Ibid., S 3.3.
Fascicle VII.2 - Rec. U.10 PAGE1