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

International Telecommunication Union

�

ITU

Fran�ais� Espa�ol

�

�

Home : ITU-T : Publications : Recommendations : Q�Series : Q.2931

Recently posted�-� Search Recommendations

�

�

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

�

Top�-� Feedback�-� Contact us�-� Copyright � ITU�2008�All Rights Reserved
Contact for this page :� ITU-T Publications
Updated :�2014-05-15

�