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� Home : ITU-T : Publications : Recommendations : I�Series : I.254.1 : I.254.1 (11/88)
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I.254.1�:�Multiparty supplementary services : Conference calling (CONF) �

Recommendation I.254.1 (11/88)

Approved in 1988-11-25

Status : In force

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Format Size Posted Article Number
English

PDF Document PDF (acrobat)

345033 bytes 2004-06-04 E�18016�
Espa�ol

PDF Document PDF (acrobat)

312862 bytes 2008-08-21 S�18016�
Fran�ais

PDF Document PDF (acrobat)

300733 bytes 2008-08-21 F�18016�

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Format Size Posted Article Number TIES users
English

Word Document Word

402432 bytes 2004-06-04 E�18016� Download

Word Document (Zip) Zip (Word)

331828 bytes 1989-06-02 � Download
Espa�ol

Word Document Word

501248 bytes 2008-08-21 S�18016� Download

Zip Zip (Components)

397324 bytes 2008-08-21 � Download
Fran�ais

Word Document Word

472064 bytes 2008-08-21 F�18016� Download

Zip Zip (Components)

369616 bytes 2008-08-21 � Download

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