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E.439 : Test call measurement to assess N-ISDN 64 kbit/s circuit-switched bearer service UDI in operation  

Recommendation E.439

In force components
Number
 Title Status
E.439 (03/00)
  		Test call measurement to assess N-ISDN 64 kbit/s circuit-switched bearer service UDI in operation   In force

 

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Updated : 2006/09/26