ISO/IEC 15429:2003
                            
                        
                            
                                Information technology -- Telecommunications and information exchange between systems -- Private Integrated Services Network -- Inter-exchange signalling protocol -- Wireless Terminal Location Registration supplementary service and  Wireless Terminal Information exchange additional network feature
                            
                        
                        
                        
                        
                            
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                                            Vigente
                
 
        
                        
                        
                        
    
                
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