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Q.761�:�Signalling System No. 7 - ISDN User Part functional description �

Recommendation Q.761

In force components
Number
 Title Status
Q.761 (12/99)
� 		Signalling System No. 7 - ISDN User Part functional description � In force
Q.761 (1999) Amendment 1 (07/01)
� 		� In force
Q.761 (1999) Amendment 2 (12/02)
� 		Support for the International Emergency Preference Scheme �
 		In force
Q.761 (1999) Amendment 3 (01/06)
� 		Support for the International Emergency Preference Scheme �
 		In force
Q.761 (1999) Amendment 4 (10/09)
� 		Support for the customized alerting tone (CAT) service � In force
�
�
Superseded and Withdrawn components
Number
 Title Status
Q.761 (11/88)
� 		Specifications of Signalling System No. 7 - Functional description of the ISDN user part of Signalling System No. 7 � Superseded
Q.761 (03/93)
� 		Functional description of the ISDN user part of Signalling System No. 7 � Superseded
Q.761 (09/97)
� 		Signalling System No. 7 - ISDN User Part functional description � Superseded
Q.761 Addendum 1 (05/98)
� 		� Superseded

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