Test chart No. 4 1994 - High Quality
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(C)Preservation wooden poles 2009
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Operational Bulletin No. 692 (15.V.1999)
Operational Bulletin No. 692 (15.V.1999) and Annexed List: List of Telegram Destination Indicators (In accordance with ITU-T Recommendation F.32) (Position on 15 May 1999) (15.05.1999)
Operational Bulletin No. 666 (15.IV.1998
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Operational Bulletin No. 734 (15.II.2001
Operational Bulletin No. 734 (15.II.2001) (15.02.2001)
Mitigation Measures for Telecom. Inst.
Mitigation measures for telecommunication installations - Part 1 (2008)
Operational Bulletin No. 693 (1.VI.1999)
Operational Bulletin No. 693 (1.VI.1999) and Annexed List: List of Telex Destination Codes (TDC) and Telex Network Identification Codes (TNIC) (Complement to ITU-T Recommendations F.69 and F.68) (Position on 31 May 1999) (01.06.1999)
(R)Mitigation Measures Telecom. Inst.
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Operational Bulletin No. 690 (15.IV.1999
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Operational Bulletin No. 664 (15.III.199
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Complément au Manuel de téléphonométrie
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