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  Home : ITU-T : Publications : Recommendations : Q Series : Q.931 : Q.931/I.451 (11/88)
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Q.931 : ISDN user-network interface layer 3 specification for basic call control

Recommendation Q.931/I.451 (11/88)

Approved in 1988-11-25

Status : Superseded

 

Table of Contents

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


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