| In force components | 
| Number 
 | Title | Status | 
| G.729 (06/12) 
 | Coding of speech at 8 kbit/s using conjugate-structure algebraic-code-excited linear prediction (CS-ACELP) | In force 
 | 
| G.Imp729  (10/17) 
 | Implementers' Guide for Recommendation ITU-T G.729 (2012) "Coding of speech at 8 kbit/s using CS-ACELP" | In force 
 | 
| 
 | 
| Superseded and Withdrawn components | 
| Number 
 | Title | Status | 
| G.Imp723.1/G.729/G.723.1 (02/02) 
 | Implementor's Guide for G.723.1 and G.729 Annexes F, G, H, I | Superseded 
 | 
| G.729 (03/96) 
 | Coding of speech at 8 kbit/s using conjugate-structure algebraic-code-excited linear prediction (CS-ACELP) This Recommendation includes 3 diskettes containing source code and test sequences for implementation verification of the algorithm of the G.729 8 kbit/s CS-ACELP speech coder
 | Superseded 
 | 
| G.729 (1996) Erratum 1 (04/06) 
 |  | Superseded 
 | 
| G.729 Annex A (11/96) 
 | Reduced complexity 8 kbit/s CS-ACELP speech codec This annex includes 3 diskettes containing source code and test sequences for implementation verification of the algorithm of the G.729 reduced complexity 8 kbit/s CS-ACELP speech coder
 | Superseded 
 | 
| G.729 Annex B (10/96) 
 | A silence compression scheme for G.729 optimized for terminals conforming to Recommendation V.70 This annex includes 1 diskette containing source code and test sequences for implementation verification of the version 1.3 algorithm of the G.729 silence compression scheme
 | Superseded 
 | 
| G.729 Annex B (1996) Corrigendum 1 (02/98) 
 | This corrigendum was not published and concerns only the software; the resulting version 1.3 had been included in the published ITU-T Recommendation G.729 Annex B (10/1996)
 | Superseded 
 | 
| G.729 Annex B (1996) Corrigendum 2 (02/00) 
 | This corrigendum concerns only the software; the resulting version 1.4 is included in the published ITU-T Recommendation G.729 Annex B (10/1996)
 | Superseded 
 | 
| G.729 Annex B (1996) Corrigendum 3 (03/01) 
 | Published as a covering note
 | Superseded 
 | 
| G.729 Annex C (09/98) 
 | Reference floating-point implementation for G.729 CS-ACELP 8 kbit/s speech coding This annex includes 1 diskette containing version 1.01 of reference C code for floating point implementation of the G.729 8 kbit/s CS-ACELP speech coder
 | Superseded 
 | 
| G.729 Annex C+ (02/00) 
 | Reference floating-point implementation for integrating G.729 CS-ACELP speech coding main body with Annexes B, D and E This annex includes an electronic attachment containing version 2.1 of reference C code for floating point implementation of CS-ACELP at 6.4/8/11.8 kbit/s with DTX functionality
 | Superseded 
 | 
| G.729 Annex C+ (2000) Corrigendum 1 (03/01) 
 | Published as a covering note
 | Superseded 
 | 
| G.729 Annex D (09/98) 
 | 6.4 kbit/s CS-ACELP speech coding algorithm This annex includes 1 diskette containing version 1.2 of source C code for fixed point implementation of the G.729 6.4 kbit/s CS-ACELP speech coder
 | Superseded 
 | 
| G.729 Annex D (1998) Corrigendum 1 (02/00) 
 | This corrigendum concerns only the software; the resulting version 1.3 is included in the published ITU-T Recommendation G.729 Annex D (09/1998)
 | Superseded 
 | 
| G.729 Annex E (09/98) 
 | 11.8 kbit/s CS-ACELP speech coding algorithm This annex includes 2 diskettes containing version 1.2 of source C code and test vectors for fixed point implementation of the G.729 11.8 kbit/s CS-ACELP speech coder
 | Superseded 
 | 
| G.729 Annex E (1998) Corrigendum 1 (02/00) 
 | This corrigendum concerns only the software; the resulting version 1.3 is included in the published ITU-T Recommendation G.729 Annex E (09/1998)
 | Superseded 
 | 
| G.729 Annex F (02/00) 
 | Reference implementation of G.729 Annex B DTX functionality for Annex D This annex includes an electronic attachment containing version 1.1 of reference C code and test vectors for fixed point implementation of CS-ACELP at 6.4 kbit/s 8 kbit/s with DTX functionality
 | Superseded 
 | 
| G.729 Annex F (2000) Corrigendum 1 (03/01) 
 | Published as a covering note
 | Superseded 
 | 
| G.729 Annex G (02/00) 
 | Reference implementation of G.729 Annex B DTX functionality for Annex E This annex includes an electronic attachment containing version 1.1 of reference C code and test vectors for fixed point implementation of CS-ACELP at 8 kbit/s and 11.8 kbit/s with DTX functionality
 | Superseded 
 | 
| G.729 Annex G (2000) Corrigendum 1 (03/01) 
 | Published as a covering note
 | Superseded 
 | 
| G.729 Annex H (02/00) 
 | Reference implementation of switching procedure between G.729 Annexes D and E This annex includes an electronic attachment containing version 1.1 of reference C code and test vectors for fixed point implementation of CS-ACELP at 6.4 kbit/s 8 kbit/s and 11.8 kbit/s without DTX functionality
 | Superseded 
 | 
| G.729 Annex I (02/00) 
 | Reference fixed-point implementation for integrating G.729 CS-ACELP speech coding main body with Annexes B, D and E This annex includes an electronic attachment containing version 1.1 of reference C code and test vectors for fixed point implementation of CS-ACELP at 6.4 kbit/s 8 kbit/s and 11.8 kb/s with DTX functionality
 | Superseded 
 | 
| G.729 Annex I (2000) Corrigendum 1 (03/01) 
 | Published as a covering note
 | Superseded 
 | 
| G.729 Annex J (05/06) 
 | An embedded variable bit-rate extension to G.729: An interoperable 8-32 kbit/s scalable wideband extension to G.729 Annex J describes an extension of ITU-T Rec. G.729 for 8-32 kbit/s scalable wideband speech and audio coding algorithm interoperable with G.729 and its Annexes A and B. The details of Annex J are specified and published in ITU-T Rec. G.729.1 in order to provide for an easier maintenance, and to give it a better visibility
 | Superseded 
 | 
| G.729 Appendix I (06/01) 
 | External synchronous reset performance for G.729 codecs in systems using external VAD/DTX/CNG | Superseded 
 | 
| G.729 Appendix II (08/05) 
 | G.729 Annex B enhancements in voice-over-IP applications - Option 1 
 | Superseded 
 | 
| G.729 Appendix III (08/05) 
 | G.729 Annex B enhancements in voice-over-IP applications - Option 2 | Superseded 
 | 
| G.729 (01/07) 
 | Coding of speech at 8 kbit/s using conjugate-structure algebraic-code-excited linear prediction (CS-ACELP) | Superseded 
 | 
| G.Imp729 (11/09) 
 | Implementors' Guide for G.729 - (Coding of speech at 8 kbit/s using CS-ACELP) | Superseded 
 | 
| G.Imp729 (04/06) 
 | Implementors' Guide for G.729 - (Coding of speech at 8 kbit/s using CS-ACELP) | Superseded 
 | 
| G.Imp729 (10/02) 
 | Implementers' Guide for G.729 Annexes B, F, G, I and C+ (Coding of speech at 8 kbit/s using CS-ACELP) | Superseded 
 |