1.1 PSTN central office, and DLC.

2. VoIP Overview and Infrastructure.

2.1 PSTN and VoIP.

2.2 Typical VoIP deployment example.

2.3 Network and acoustic interfaces for VoIP.

2.4 VoIP systems working principles.

2.5 VoIP Signaling.

3. Voice Compression.

3.1 Compression codecs.

3.2 G.711 Compression.

3.3 Speech redundancies and compression.

3.4 G.726 or ADPCM compression.

3.5 Wideband voice.

3.6 G.729 Family of low bit rate codecs.

3.7 Miscellaneous narrow and wideband codecs.

3.8 Codecs and overload levels.

3.9 Voice quality of codecs.

3.10 C-source code for codecs.

3.11 Codecs in VoIP deployment.

4. Generic VAD/CNG for Waveform Codes.

4.1 VAD/CNG and Codecs.

4.2 Generic VAD/CNG functionality.

4.3 Comfort noise payload format.

4.4 G.711 Appendix-II VAD/CNG algorithm.

4.5 Power based VAD/CNG.

4.6 VAD/CNG in low bit rate codecs.

4.7 Miscellaneous aspects of VAD/CNG.

4.8 Summary on VAD/CNG.

5. Packet Loss Concealment Techniques.

5.1 Packet loss concealment overview.

5.2 Packet Loss concealment techniques.

5.3 Transmitter and receiver based techniques.

5.4 Decoder only based PLC techniques.

5.5 PLC techniques description.

5.6 PLC for Low bit rate codecs.

5.7 PLC testing.

5.8 PLC summary and discussion.

6. Echo Cancellation.

6.1 Talker and listener echo in PSTN voice call.

6.2 Naming conventions in echo canceller.

6.3 Line and Acoustic echo canceller.

6.4 Talker echo levels and delay.

6.5 Echo cancellation in VoIP adapters.

6.6 Echo path.

6.7 Adaptation filtering algorithms.

6.8 Echo canceller control functions.

6.9 Echo cancellation in multiple VoIP terminals.

6.10 Echo canceller testing.

7. DTMF Detection, Generation, and Rejection.

7.1 Specifications of DTMF tones.

7.2 DTMF tones generation.

7.3 DTMF detection.

7.4 Goetzel filtering with linear filtering.

7.5 Tone detection using Teager and Kaiser Energy operator.

7.6 DFT or FFT processing.

7.7 DTMF rejection.

7.8 DTMF RFC2833 processing.

7.9 DTMF testing.

7.10 Summary and discussions.

8. Caller ID Features in VOIP.

8.1 FSK caller ID on PSTN.

8.2 FSK caller ID data transport protocol.

8.3 DTMF based caller ID.

8.4 Country specific caller ID overview.

8.5 Caller ID in VoIP.

8.6 Call wait caller ID.

8.7 Caller ID on FXO interfaces.

8.8 Summary and discussions.

9. Wideband Voice Modules Operation.

9.1 Wideband voice examples.

9.2 Wideband VoIP adapter.

9.3 Wideband voice summary.

10. Packetization - RTP, RTCP, and Jitter Buffer.

10.1 Real time protocol (RTP).

10.2 RTP control protocol (RTCP).

10.3 VoIP Packet impediments.

10.4 Jitter Buffer.

10.5 Adaptive Jitter Buffer.

10.6 Adapting to delay variations.

10.7 AJB algorithms overview.

10.8 Adaptive Jitter Buffer implementation guidelines.

10.9 Fixed Jitter Buffer implementation guidelines.

11. VOIP Vocie - Network BIT Rate calculations.

11.1 Voice compression and bit rate overview.

11.2 Voice payload and headers.

11.3 Ethernet, DSL and Cable interfaces for VoIP.

11.4 VoIP voice packets on DSL interface.

11.5 VoIP voice packets on Cable interface.

11.6 Bit rate calculation for different codec.

11.7 Bit rate with VAD/CNG.

11.8 Bit rate with RTCP, RTCP-XR, and Signaling.

11.9 Summary on VoIP bit rate.

12. Clock Sources for VoIP Applications.

12.1 PSTN systems and clocks.

12.2 VoIP system clock options.

12.3 Clock timing deviations relating to VoIP packets.

12.4 Measuring clock PPM.

12.5 Clock drift influence on voice and fax calls.

13. VoIP Voice Testing.

13.1 Basic test set up.

13.2 First level VoIP manual tests.

13.3 Analog front-end voice transmission tests.

13.4 Telephone line monitor for tones and timing characteristics.

13.5 MOS - PSQM, PAMS, PESQ measurements.

13.6 Bulk calls for stress testing.

13.7 Network impediments creation.

13.8 VoIP packets analysis.

13.9 Compliance tests.

13.10 VoIP Inter-operability.

13.11 Deployment tests.

13.12 Voice quality certifications.

13.13 VoIP Speech quality tests by ETSI.

13.14 User operational considerations.

14. Fax Operation on PSTN, Modulations, and Fax Messages.

14.1 Fax machine overview.

14.2 Fax image coding schemes.

14.3 Fax modulation rates.

14.4 PSTN fax call phases.

14.5 Fax and modem tones basics.

14.6 Tones detection.

14.7 Fax modulations and demodulations.

14.8 V.21 fax modem.

14.9 V.27ter fax modem.

14.10 V.29 modem.

14.11 V.17 modem.

14.12 V.34 fax modem.

14.13 V.21 HDLC framing and de-framing.

14.14 HDLC messages in ECM.

14.15 Summary and discussions on fax.

15. Fax Over IP and Modem Over IP.

15.1 Fax over IP overview.

15.2 Fax over IP benefits.

15.3 Fax basic functionality and detecting fax call.

15.4 T.38 fax relay.

15.5 Fax pass-through.

15.6 Fax over IP interoperability challenges.

15.7 Modem basic functions on PSTN.

15.8 Migrating modem functions to IP.

15.9 Guidelines for fax and modem pass-through in VoIP.

15.10 VoIP Fax tests.

16. Fax Over IP Payload Formats and BIT Rate Calculations.

16.1 Overview on T.38 and G.711 pass-through bit rate.

16.2 G.711 fax pass-through bit rate.

16.3 T.38 basic payload bytes for V.27ter, V.29, V.17, and V.34.

16.4 Overview on redundant and duplicate fax packets.

16.5 T.38 IFP packets.

16.6 IFP over TCP (TCP/IP/IFP).

16.7 IFP over UDP.

16.8 T.38 UDPTL based bit rate calculation with redundancy.

16.9 Fax UDPTL based bit rate on Ethernet and DSL interfaces.

16.10 T.38 bit rate recommendations.

17. Country Deviations of PSTN Mapped to VOIP.

17.1 Country specific deviations.

17.2 Country specific deviations on VoIP interfaces.

17.3 Call progress tones for multiple countries.

17.4 Call progress tone detectors.

18. Voice Packets Jitter with Large Data Packets.

18.1 ATM cells and transmission.

18.2 IPQoS and queuing jitter on interface.

19. VOIP on Different Processors and Architectures.

19.1 VoIP on personal computers.

19.2 VoIP on PC add-on cards.

19.3 VoIP on dedicated processors.

19.4 Operating system aspects on different platforms.

19.5 Voice processing complexity.

20. VoIP Voice Quality.

20.1 Voice quality measurements.

20.2 E-model based voice quality estimation.

20.2.1 R-factor calculations.

20.3 VoIP voice quality considerations.

20.4 VoIP voice quality summary.

20.5 Voice quality monitoring and RTCP-XR.

20.6 Summary and discussions.

21. Voice FAQ.

22. Fax FAQ.