Recommendation U.10

EQUIPMENT OF AN INTERNATIONAL TELEX POSITION

(former CCIT Recommendation F.60; modified at New Delhi, 1960)

The CCITT,

considering

that an 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.