International Telecommunication Union � ITU
Fran�ais� Espa�ol
�
Site map Contact us Print version
� Home : ITU-T : Publications : Recommendations : I�Series : I.253.1 : I.253.1 (11/88)
Recently posted�-� Search Recommendations
� �
I.253.1�:�Call completion supplementary services : Call waiting �

Recommendation I.253.1 (11/88)

Approved in 1988-11-25

Status : Superseded

No Document currently available

�

Top�-� Feedback�-� Contact us�-� Copyright � ITU�2008�All Rights Reserved
Contact for this page :� ITU-T Publications
Updated :�2011.03.14		 �