User's Manual
Table Of Contents
- Contents
- Figures
- Tables
- Revision History
- About This Publication
- 1. Product Description
- 2. Programming Models
- 3. Device Handling
- 4. Event Handling
- 5. Error Handling
- 6. Application Development Guidelines
- 7. Call Progress Analysis
- 7.1 Call Progress Analysis Overview
- 7.2 Call Progress and Call Analysis Terminology
- 7.3 Call Progress Analysis Components
- 7.4 Using Call Progress Analysis on DM3 Boards
- 7.5 Call Progress Analysis Tone Detection on DM3 Boards
- 7.6 Media Tone Detection on DM3 Boards
- 7.7 Default Call Progress Analysis Tone Definitions on DM3 Boards
- 7.8 Modifying Default Call Progress Analysis Tone Definitions on DM3 Boards
- 7.9 Call Progress Analysis Errors
- 7.10 Using Call Progress Analysis on Springware Boards
- 7.11 Call Progress Analysis Tone Detection on Springware Boards
- 7.12 Media Tone Detection on Springware Boards
- 7.13 Default Call Progress Analysis Tone Definitions on Springware Boards
- 7.14 Modifying Default Call Progress Analysis Tone Definitions on Springware Boards
- 7.15 SIT Frequency Detection (Springware Only)
- 7.15.1 Tri-Tone SIT Sequences
- 7.15.2 Setting Tri-Tone SIT Frequency Detection Parameters
- 7.15.3 Obtaining Tri-Tone SIT Frequency Information
- 7.15.4 Global Tone Detection Tone Memory Usage
- 7.15.5 Frequency Detection Errors
- 7.15.6 Setting Single Tone Frequency Detection Parameters
- 7.15.7 Obtaining Single Tone Frequency Information
- 7.16 Cadence Detection in Basic Call Progress Analysis (Springware Only)
- 8. Recording and Playback
- 8.1 Overview of Recording and Playback
- 8.2 Digital Recording and Playback
- 8.3 Play and Record Functions
- 8.4 Play and Record Convenience Functions
- 8.5 Voice Encoding Methods
- 8.6 G.726 Voice Coder
- 8.7 Transaction Record
- 8.8 Silence Compressed Record
- 8.9 Recording with the Voice Activity Detector
- 8.10 Streaming to Board
- 8.11 Pause and Resume Play
- 8.12 Echo Cancellation Resource
- 9. Speed and Volume Control
- 10. Send and Receive FSK Data
- 11. Caller ID
- 12. Cached Prompt Management
- 13. Global Tone Detection and Generation, and Cadenced Tone Generation
- 13.1 Global Tone Detection (GTD)
- 13.1.1 Overview of Global Tone Detection
- 13.1.2 Global Tone Detection on DM3 Boards versus Springware Boards
- 13.1.3 Defining Global Tone Detection Tones
- 13.1.4 Building Tone Templates
- 13.1.5 Working with Tone Templates
- 13.1.6 Retrieving Tone Events
- 13.1.7 Setting GTD Tones as Termination Conditions
- 13.1.8 Maximum Amount of Memory for Tone Templates
- 13.1.9 Estimating Memory
- 13.1.10 Guidelines for Creating User-Defined Tones
- 13.1.11 Global Tone Detection Application
- 13.2 Global Tone Generation (GTG)
- 13.3 Cadenced Tone Generation
- 13.3.1 Using Cadenced Tone Generation
- 13.3.2 How To Generate a Custom Cadenced Tone
- 13.3.3 How To Generate a Non-Cadenced Tone
- 13.3.4 TN_GENCAD Data Structure - Cadenced Tone Generation
- 13.3.5 How To Generate a Standard PBX Call Progress Signal
- 13.3.6 Predefined Set of Standard PBX Call Progress Signals
- 13.3.7 Important Considerations for Using Predefined Call Progress Signals
- 13.1 Global Tone Detection (GTD)
- 14. Global Dial Pulse Detection
- 14.1 Key Features
- 14.2 Global DPD Parameters
- 14.3 Enabling Global DPD
- 14.4 Global DPD Programming Considerations
- 14.5 Retrieving Digits from the Digit Buffer
- 14.6 Retrieving Digits as Events
- 14.7 Dial Pulse Detection Digit Type Reporting
- 14.8 Defines for Digit Type Reporting
- 14.9 Global DPD Programming Procedure
- 14.10 Global DPD Example Code
- 15. R2/MF Signaling
- 16. Syntellect License Automated Attendant
- 17. Building Applications
- Glossary
- Index

Voice API Programming Guide – June 2005 5
Contents
7.10 Using Call Progress Analysis on Springware Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
7.10.1 Overview of Steps to Initiate Call Progress Analysis . . . . . . . . . . . . . . . . . . . . . . 61
7.10.2 Setting Up Call Progress Analysis Features in DX_CAP . . . . . . . . . . . . . . . . . . . 61
7.10.3 Enabling Call Progress Analysis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
7.10.4 Executing a Dial Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
7.10.5 Determining the Outcome of a Call. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
7.10.6 Obtaining Additional Call Outcome Information . . . . . . . . . . . . . . . . . . . . . . . . . . 64
7.11 Call Progress Analysis Tone Detection on Springware Boards . . . . . . . . . . . . . . . . . . . . . 65
7.11.1 Tone Detection Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
7.11.2 Types of Tones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
7.11.3 Dial Tone Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
7.11.4 Ringback Detection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
7.11.5 Busy Tone Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
7.11.6 Fax or Modem Tone Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
7.11.7 Loop Current Detection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
7.12 Media Tone Detection on Springware Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
7.12.1 Positive Voice Detection (PVD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
7.12.2 Positive Answering Machine Detection (PAMD) . . . . . . . . . . . . . . . . . . . . . . . . . . 70
7.13 Default Call Progress Analysis Tone Definitions on Springware Boards. . . . . . . . . . . . . . 71
7.14 Modifying Default Call Progress Analysis Tone Definitions on Springware Boards . . . . . 71
7.15 SIT Frequency Detection (Springware Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
7.15.1 Tri-Tone SIT Sequences. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
7.15.2 Setting Tri-Tone SIT Frequency Detection Parameters . . . . . . . . . . . . . . . . . . . . 73
7.15.3 Obtaining Tri-Tone SIT Frequency Information . . . . . . . . . . . . . . . . . . . . . . . . . . 75
7.15.4 Global Tone Detection Tone Memory Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
7.15.5 Frequency Detection Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
7.15.6 Setting Single Tone Frequency Detection Parameters. . . . . . . . . . . . . . . . . . . . . 77
7.15.7 Obtaining Single Tone Frequency Information . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
7.16 Cadence Detection in Basic Call Progress Analysis (Springware Only) . . . . . . . . . . . . . . 78
7.16.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
7.16.2 Typical Cadence Patterns. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
7.16.3 Elements of a Cadence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
7.16.4 Outcomes of Cadence Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
7.16.5 Setting Selected Cadence Detection Parameters. . . . . . . . . . . . . . . . . . . . . . . . . 82
7.16.6 Obtaining Cadence Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
8 Recording and Playback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
8.1 Overview of Recording and Playback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
8.2 Digital Recording and Playback. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
8.3 Play and Record Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
8.4 Play and Record Convenience Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
8.5 Voice Encoding Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
8.6 G.726 Voice Coder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
8.7 Transaction Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
8.8 Silence Compressed Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
8.8.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
8.8.2 Enabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
8.8.3 Encoding Methods Supported . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
8.9 Recording with the Voice Activity Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
8.9.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95