Annex F – Reference implementation of G.729 Annex B DTX functionality for Annex D    
        F.1     Scope    
        F.2     Normative references        
        F.3     Overview  
        F.4     New functionality   
                  F.4.1     Annex B DTX operation with Annex D     
        F.5     Algorithm Description        
                  F.5.1     Update of state variables specific to Annex D during discontinued transmission    
        F.6     Description of C source code        
                  F.6.1     Use of the simulation software       
                  F.6.2     Organization of the simulation software
Electronic attachment:
 –     reference C code implementation
 –     test vectors