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  Home : ITU-T : Publications : Recommendations : Q Series : Q.953.1
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Q.953.1 : Stage 3 description for call completion supplementary services using DSS 1 : Call waiting  

Recommendation Q.953.1

In force components
Number
Title Status
Q.953.1 (02/92)
 
Stage 3 description for call completion supplementary services using DSS 1 : Call waiting   In force

 

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Updated : 2011.03.14