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Q.2931 : Digital Subscriber Signalling System No. 2 - User-Network Interface (UNI) layer 3 specification for basic call/connection control

Recommendation Q.2931

Modified by ITU-T Q.2971 (10/1995).
In force components
Number
 Title Status
Q.2931 (02/95)
  		Digital Subscriber Signalling System No. 2 - User-Network Interface (UNI) layer 3 specification for basic call/connection control  
Modified by ITU-T Q.2971 (10/1995) 		In force
Q.2931 (1995) Amendment 1 (06/97)
  		  In force
Q.2931 (1995) Amendment 2 (03/99)
  		  In force
Q.2931 (1995) Amendment 3 (03/99)
  		  In force
Q.2931 (1995) Amendment 4 (12/99)
  		  In force
Q.2931 (1995) Amendment 2 Corrigendum 1 (06/00)
  		  In force
Q.2931 (1995) Amendment 5 (01/06)
  		Support for the International Emergency Preference Scheme   In force

 

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Updated : 2014-05-15