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Q.931 : ISDN user-network interface layer 3 specification for basic call control

Recommendation Q.931

This Recommendation is also included but not published in I series under alias number I.451

In force components
Number
Title Status
Q.931 (05/98)
 
ISDN user-network interface layer 3 specification for basic call control  
This Recommendation is also included but not published in I series under alias number I.451
In force
Q.931 (1998) Erratum 1 (02/03)
 
  In force
Q.931 (1998) Amendment 1 (12/02)
 
Extensions for the support of digital multiplexing equipment  
In force
 
 
Superseded and Withdrawn components
Number
Title Status
Q.931/I.451 (11/88)
 
ISDN user-network interface layer 3 specification for basic call control  
This Recommendation is also included but not published in I series under alias number I.451
Superseded
Q.931 (03/93)
 
ISDN user-network interface layer 3 specification for basic call control  
This Recommendation is also included but not published in I series under alias number I.451
Superseded

 

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Updated : 2013-10-02