Publication: Magyar Közlöny
Issue: MK-2009-104 (Year: 2009, Number: 104)
Era: 2004-2010
Section: 
Paragraph Index: 1671

b) arrangements exist whereby delayed traffic is automatically diverted to commercial telecommunication services without reference to the originator. Note.— The expression “reasonable period” means a period of time such that it seems probable that the traffic will not be delivered to the addressee within any fixed transit period applicable to the category of traffic concerned, or, alternatively, any predetermined period agreed between originators and the telecommunication station concerned. 4.4.1.4 Supervision of message traffic 4.4.1.4.1 Continuity of message traffic. The receiving station shall check the transmission identification of incoming transmissions to ensure the correct sequence of channelsequence numbers of all messages received over that channel. Chapter 4 Annex 10 — Aeronautical Telecommunications 4-7 1/11/01 4.4.1.7.2 In cases where acknowledgement is made between AFTN communication centres, a relay centre shall be considered as having no further responsibility for retransmission or repetition of a message for which it has received positive acknowledgement, and it may be deleted from its records. Note.— Provisions relating to long-term retention of AFTN traffic records in AFTN communication centres are contained in 4.4.1.6. 4.4.1.8 Test procedures on 4.4.1.8 AFTN channels 4.4.1.8.1 Recommendation.— Test messages transmitted on AFTN channels for the purpose of testing and repairing lines should consist of the following: 1) the start-of-message signal; 2) the procedure signal QJH; 3) the originator indicator; 4) three page-copy lines of the sequence of characters RY in ITA-2 or U(5/5) *(2/10) in IA-5; and 5) the end-of-message signal. 4.4.2 Message format — International Telegraph Alphabet No. 2 (ITA-2) All messages, other than those prescribed in 4.4.1.8 and 4.4.9.3, shall comprise the components specified in 4.4.2.1 to 4.4.6.1 inclusive. Note 1.— An illustration of the ITA-2 message format is given in Figure 4-1. Note 2.— In the subsequent Standards relative to message format the following symbols have been used in making reference to the functions assigned to certain signals in the International Telegraph Alphabet No. 2 (see Volume III, Part I, 8.2.1 and Table 8-1): Symbol Signification < CARRIAGE RETURN (signal no. 27) ≡ LINE FEED (signal no. 28) ↓ LETTER SHIFT (signal no. 29) ↑ FIGURE SHIFT (signal no. 30) → SPACE (signal no. 31) 4.4.2.1 Heading 4.4.2.1.1 The heading shall comprise:

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