How to detect DTMF when sent by MediaTerminalConnection.generateDTMF()?

Question:

I am developing module for sending DTMF to an extension using JTAPI when call is active.

I can send DTMF manually by pressing keypad of called terminal.

This DTMF is captured by MediaTermConnDtmfEv event and showed on console.

But when i send DTMF using MediaTerminalConnection.generateDTMF(), application is unable to capture DTMF via MediaTermConnDtmfEv event.

I can hear DTMF when sending DTMF manually by pressing keypad of called terminal and sending DTMF using MediaTerminalConnection.generateDTMF().

How we can detect DTMF when sent by MediaTerminalConnection.generateDTMF()?

Answer:

MediaTermConnDtmfEv is notified to MediaCallObserver. (out of band DTMF should be configured.)

Please refer - DTMF Tone Detection for related information.

case MediaTermConnAvailableEv.ID:

TerminalConnection tc = ((MediaTermConnAvailableEv) eventList[i]).getTerminalConnection();

MediaTerminalConnection mtc = (MediaTerminalConnection)tc;

try {

mtc.setDtmfDetection(true);

} catch (Exception excp) {

excp.printStackTrace();

// Handle exceptions

}

break;

case MediaTermConnDtmfEv.ID:

/* Print out the DTMF digits */

logger.info("Print out the DTMF digits");

char digit = ((MediaTermConnDtmfEv)eventList[i]).getDtmfDigit();

System.out.println("detected DTMF: " + digit);

break;