Table of Contents

 1 Scope            
 2 References   
 3 Definitions   
 4 Abbreviations and acronyms  
 5 Extended DTMF detection package      
        5.1 Properties           
        5.2 Events
        5.3 Signals
        5.4 Statistics            
        5.5 Procedures         
 6 Enhanced DTMF detection package     
        6.1 Properties           
        6.2 Events
        6.3 Signals
        6.4 Statistics            
        6.5 Procedures