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� Home : ITU-T : Publications : Recommendations : I�Series : I.251.1 : I.251.1 (08/92)
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I.251.1�:�Number identification supplementary services : Direct-dialling-In �

Recommendation I.251.1 (08/92)

Approved in 1992-08-04

Status : In force

Access : Freely available items

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Format Size Posted Article Number
English

PDF Document PDF (acrobat)

73627 bytes 1992-10-23 E�2831�
Espa�ol

PDF Document PDF (acrobat)

73250 bytes 1992-10-23 S�2866�
Fran�ais

PDF Document PDF (acrobat)

72954 bytes 1992-10-23 F�2796�

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