CONTENTS

 1     Scope 
 2     References 
 3     Terms and definitions       
 4     Abbreviations and acronyms        
 5     Interaction aspects of signal processing network equipment           
        5.1     Interaction aspects of echo suppressors      
        5.2     Interaction aspects of echo cancellers         
        5.3     Interaction aspects of voice enhancement devices   
        5.4     Interaction aspects of automatic level control          
        5.5     Interaction aspects of circuit multiplication equipment          
        5.6     Interaction aspects of acoustic echo controllers       
        5.7     Interaction aspects of voice gateways         
        5.8     Some considerations on the preferred locations of voice enhancement SPNE          
Appendix I – Tandem-Free Operation (TFO)    
        I.1        Introduction         
        I.2        Essence of the current standards   
BIBLIOGRAPHY