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 169
14
14.Global Dial Pulse Detection
Global dial pulse detection (global DPD) is a signaling component of the voice library. The
following topics provide more information on global DPD:
• Key Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
• Global DPD Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
• Enabling Global DPD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
• Global DPD Programming Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
• Retrieving Digits from the Digit Buffer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
• Retrieving Digits as Events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
• Dial Pulse Detection Digit Type Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
• Defines for Digit Type Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
• Global DPD Programming Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
• Global DPD Example Code. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
14.1 Key Features
Global dial pulse detection is not supported on DM3 boards.
Dial Pulse Detection (DPD) allows applications to detect dial pulses from rotary or pulse phones by
detecting the audible clicks produced when a number is dialed, and to use these clicks as if they
were DTMF digits. Intel global dial pulse detection, called global DPD, is a software-based dial
pulse detection method that can use country-customized parameters for extremely accurate
performance.
Global DPD provides the following features and benefits:
• The global DPD algorithm is adaptive and can train on any DPD digit it encounters, with the
greatest accuracy produced from training on a digit that has 5 or more pulses. Global DPD
does not require a leading “0” to train the global DPD algorithm.
• Global DPD can be performed simultaneously with DTMF detection. The application can
determine whether the digit detected is a DTMF or DPD digit.
• Global DPD can be performed simultaneously with Global Tone Detection (GTD). For
example, the application can use GTD to monitor for dial tone or busy tones simultaneously
with DPD.
• Global DPD supports pulse-digit cut-through during a voice playback, with the correct digit
returned in the digit buffer. Global DPD uses echo cancellation, which provides more accurate
reporting of digits during voice playback.