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  Home : ITU-T : Publications : Recommendations : Q Series : Q.931 : Q.931/I.451 (1998) Amendment 2 (12/23)
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Q.931 : Extensions for the support for the calling line identification authentication  

Recommendation Q.931/I.451 (1998) Amendment 2 (12/23)

Approved in 2023-12-14

Status : In force

 

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Updated : 2024-03-14