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� Home : ITU-T : Publications : Recommendations : I�Series : I.221
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I.221�:�Common specific characteristics of services �

Recommendation I.221

In force components
Number
 Title Status
I.221 (03/93)
� 		Common specific characteristics of services � In force
�
�
Superseded and Withdrawn components
Number
 Title Status
I.221 (11/88)
� 		Common specific characteristics of services � Superseded

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