1.3. Signaling Features

• 1.3.1. Global Tone Detection (GTD)
• 1.3.2. Global Tone Generation (GTG)
• 1.3.3. Cadence Tone Generation (CTG)
• 1.3.4. Global Dial Pulse Detection (GDPD)
• 1.3.5. R2MF Signaling

1.3.1. Global Tone Detection (GTD)

Global Tone Detection allows a voice board to detect single or dual frequency tones other than DTMF tones 0-9, a-d, *, and #. Through GTD, a user can define the characteristics of a tone in order to detect a tone with the same characteristics. The characteristics of a tone can be defined and tone detection can be enabled using GTD functions provided in the Voice Library.

Global Tone Detection (GTD) is available on all Dialogic voice boards.

See Chapter5.2. Global Tone Detection (GTD) for detailed information about Global Tone Detection.

1.3.2. Global Tone Generation (GTG)

Global Tone Generation permits the creation of user-defined tones using the TN_GEN template data structure and allows the user to play the tone using the dx_playtone( ) function. The dx_bldtngen( ) can be used to build the TN_GEN template.

Global Tone Generation (GTG) is available on all Dialogic voice boards.

See Section 5.3. Global Tone Generation (GTG) for detailed information about Global Tone Generation.

1.3.3. Cadence Tone Generation (CTG)

CTG is an enhancement to Global Tone Generation. It allows you to generate a tone with up to 4 single- or dual-tone elements, each with its own on/off duration, which creates the tone pattern or cadence. The data structure TN_GENCAD defines a cadenced tone and the function dx_playtoneEx( ) plays the cadenced tone defined by TN_GENCAD. You can define your own custom cadenced tone or take advantage of the built-in set of standard PBX Call Progress Signals, such as dial tone, ringback, busy, etc.

1.3.4. Global Dial Pulse Detection (GDPD)

Global Dial Pulse Detection (GDPD) allows applications to detect dial pulses from rotary or pulse phones and use them as if they were DTMF digits. This software-based dial pulse detection method uses use country-specific parameters for extremely accurate performance. Unlike other DPD solutions on the market, GDPD does not require callers to train the detection algorithm by dialing zero before any other dialing response.

GDPD supports both digital and analog (using the loop start telephone interface) applications on selected boards.

Global DPD will work only on DPD-enabled boards. Boards with the "IDPD" suffix are enabled. If your board does not have an IDPD suffix, you must order a separate Global DPD enablement package from Dialogic. GDPD is not supported on the VFX/40, VFX/40E, VFX/40SC or VFX/40ESC boards. It is recommended that you retain the serial number of the DPD-enabled board for your records.

1.3.5. R2MF Signaling

R2MF signaling is an international signaling system that is used in Europe and Asia to permit the transmission of numerical and other information relating to the called and calling subscriber's lines.

Click here to contact Dialogic Customer Engineering