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
74 Voice API Programming Guide — June 2005
Call Progress Analysis
3. After a SIT sequence is detected, ATDX_CPTERM( ) will return CR_CEPT to indicate an
operator intercept, and you can determine which SIT sequence was detected by obtaining the
actual detected frequency and duration for the tri-tone sequence using extended attribute
functions. These functions are described in detail in the Voice API Library Reference.
The following fields in the DX_CAP are used for frequency detection on voice boards. Frequencies
are specified in Hertz, and time is specified in 10 msec units. To enable detection of the second and
third tones, you must set the frequency detection range and time for each tone.
General
The following field in the DX_CAP is used for frequency detection on voice boards.
ca_stdely
Start Delay. The delay after dialing has been completed and before starting frequency
detection. This parameter also determines the start of cadence detection and positive voice
detection. Note that this can affect detection of the first element of an operator intercept tone.
Default: 25 (10 msec units).
First Tone
The following fields in the DX_CAP are used for frequency detection for the first tone.
Frequencies are specified in Hertz, and time is specified in 10 msec units.
ca_lowerfrq
Lower bound for first tone in Hz.
Default: 900.
ca_upperfrq
Upper bound for first tone in Hz. Adjust higher for additional operator intercept tones.
Default: 1000.
ca_timefrq
Minimum time for first tone to remain in bounds. The minimum amount of time required for
the audio signal to remain within the frequency detection range for it to be detected. The audio
signal must not be greater than ca_upperfrq or lower than ca_lowerfrq for at least the time
interval specified in ca_timefrq.
Default: 5 (10 msec units).
ca_mxtimefrq
Maximum allowable time for first tone to be present.
Default: 0 (10 msec units).
Second Tone
The following fields in the DX_CAP are used for frequency detection for the second tone.
Frequencies are specified in Hertz, and time is specified in 10 msec units. To enable detection of
the second and third tones, you must set the frequency detection range and time for each tone.
Note: This tone is disabled initially and must be activated by the application using these variables.