ITU Publications : Operational Bulletin No.1001 (1.IV.2012) and Annexed List: <br/>
List of the national authorities designated to assign ITU-T Recommendation T.35 terminal provider codes (Position on 1 April 2012)
Operational Bulletin No.1001 (1.IV.2012) and Annexed List:
List of the national authorities designated to assign ITU-T Recommendation T.35 terminal provider codes (Position on 1 April 2012) 1.IV.2012
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