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                  Apparatus with one or more particular functions for connection to public switched telephone networks run by certain public telecommunications operators. Specification for apparatus with call barring facilities.
STANDARD published on 30.11.1988
    
        Designation standards: BS 6789-7:1988
                
                
                
                Note:    WITHDRAWN
               
                Publication date standards:  30.11.1988
                  SKU:  NS-75120
          The number of pages: 12
Approximate weight : 36 g (0.08 lbs)
        Country:          British technical standard
        Category: Technical standards BS
        
                
              
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