Suppress DTMF audio in-call

[GLComputing]

I know it's possible... but how can I send DTMF digits in-call without the tones being audible?

Windows Mobile 5 or 6

Is there an API call for this?

I know it can be done. I have an app that dials a number:
xxxxxxxxxx
Then, sends a DTMF string:
*#xxxxxxxxx

The 2nd part was audible, but the developer made a change and suppressed it... I'd like to do the same, but can't find the right call to suppress the tones in the phone speaker.


Regards,
Mike Lazarus
ACT! Evangelist
GL Computing, Aust

http://www.GLComputing.com.au

Join the LinkedIN ACT! Fanatics Group

http://www.linkedin.com/e/gis/49896