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  Home : ITU-T : Publications : Recommendations : Q Series : Q.2957.1 : Q.2957.1 (02/95)
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Q.2957.1 : Stage 3 description for additional information transfer supplementary services using B-ISDN digital subscriber signalling system No. 2 (DSS2) - Basic call : User-to-user signalling (UUS)

Recommendation Q.2957.1 (02/95)

Approved in 1995-02

Status : In force

 

Table of Contents

 

Summary

Modified by ITU-T Q.2971 (10/1995)


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