We actually get both the "wobble" detection (multiple tones detected with one button press) and missing detection (press 201 and it detects 01 missing the 2). The suggestions on voip-info have not yet helped and the lack of DTMF_BEGIN events concern me. It's also not clear right now where the dtmf detection is done, if it's in the
zaptel-1.4.6 code base or within asterisk-1.4.14/main/dsp.c. They both seem to do tone detection.<br><br>John<br><br><div class="gmail_quote">On Dec 3, 2007 10:31 AM, Daniel Hazelbaker <<a href="mailto:daniel@highdesertchurch.com">
daniel@highdesertchurch.com</a>> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div class="Ih2E3d">On Dec 2, 2007, at 5:35 PM, John Aughey wrote:
<br><br>> The begin frames (and associated end frames) are helpful to filter<br>> out short dtmf reads. There's even a #define which specifies the<br>> minimum length of a dtmf tone. One problem we're having is multiple
<br>> dtmf detections on a noisy cell phone connection, which should be<br>> mostly filtered by knowing the begin and end time so that the length<br>> can be properly measured and filtered if needed.<br>><br>> John
<br><br></div>If you are running 1.4.15 (it should apply down to .12 as well I<br>believe) then you can try this patch. We have a similar problem at<br>our site, except it is due to a junky NEC that is currently the front-
<br>end to the Telco. Tones would have a drop-out in the middle of them<br>so Asterisk was detected double digits. i.e. they dial 235 and it<br>reads 2335. With this patch the "wobble" tones are almost never an
<br>issue anymore.<br><br><<a href="http://www.blueboxmoon.com/bitweaver/blogs/view_post.php?post_id=10" target="_blank">http://www.blueboxmoon.com/bitweaver/blogs/view_post.php?post_id=10</a>><br><font color="#888888">
<br>Daniel<br></font><div><div></div><div class="Wj3C7c"><br>_______________________________________________<br>--Bandwidth and Colocation Provided by <a href="http://www.api-digital.com--" target="_blank">http://www.api-digital.com--
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