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 43
7
7.Call Progress Analysis
This chapter provides detailed information about the call progress analysis feature. The following
topics are discussed:
• Call Progress Analysis Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
• Call Progress and Call Analysis Terminology. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
• Call Progress Analysis Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
• Using Call Progress Analysis on DM3 Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
• Call Progress Analysis Tone Detection on DM3 Boards. . . . . . . . . . . . . . . . . . . . . . . . 51
• Media Tone Detection on DM3 Boards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
• Default Call Progress Analysis Tone Definitions on DM3 Boards . . . . . . . . . . . . . . . . 56
• Modifying Default Call Progress Analysis Tone Definitions on DM3 Boards . . . . . . . 57
• Call Progress Analysis Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
• Using Call Progress Analysis on Springware Boards . . . . . . . . . . . . . . . . . . . . . . . . . . 60
• Call Progress Analysis Tone Detection on Springware Boards. . . . . . . . . . . . . . . . . . . 65
• Media Tone Detection on Springware Boards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
• Default Call Progress Analysis Tone Definitions on Springware Boards . . . . . . . . . . . 71
• Modifying Default Call Progress Analysis Tone Definitions on Springware Boards . . 71
• SIT Frequency Detection (Springware Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
• Cadence Detection in Basic Call Progress Analysis (Springware Only) . . . . . . . . . . . 78
7.1 Call Progress Analysis Overview
Call progress analysis monitors the progress of an outbound call after it is dialed into the Public
Switched Telephone Network (PSTN).
By using call progress analysis (CPA) you can determine for example:
• whether the line is answered and, in many cases, how the line is answered
• whether the line rings but is not answered
• whether the line is busy
• whether there is a problem in completing the call
The outcome of the call is returned to the application when call progress analysis has completed.