International Telecommunication Union � ITU
Fran�ais� Espa�ol
�
Site map Contact us Print version
� Home : ITU-T : Publications : Recommendations : I�Series : I.421 : I.421 (11/88)
Recently posted�-� Search Recommendations
� �
I.421�:�Primary rate user-network interface �

Recommendation I.421 (11/88)

Approved in 1988-11-25

Status : In force

Access : Freely available items

Available languages and formats :
�
Click on the Item

Click on the selected format
and language to get the document

� �
Format Size Posted Article Number
English

PDF Document PDF (acrobat)

46860 bytes 1989-07-06 E�14966�
Espa�ol

PDF Document PDF (acrobat)

52284 bytes 1989-07-06 S�14966�
Fran�ais

PDF Document PDF (acrobat)

52589 bytes 1989-07-06 F�14966�

Access :

TIES users

Available languages and formats :
�
Click on the Item

Click on the selected format
and language to get the document

� �
Format Size Posted Article Number TIES users
English

Word Document Word

29674 bytes 1989-07-06 E�14966� Download
Espa�ol

Word Document Word

41052 bytes 1989-07-06 S�14966� Download
Fran�ais

Word Document Word

40092 bytes 1989-07-06 F�14966� Download

�

Top�-� Feedback�-� Contact us�-� Copyright � ITU�2008�All Rights Reserved
Contact for this page :� ITU-T Publications
Updated :�2001/09/10		 �