I still am facing this problem, but wanted to provide more data in case somebody has a solution already...

1. The call path is from PSTN --> Asterisk --> FreeSWITCH.
2. play-and-get-digits works fine for multiple dtmf. But for one single dtmf I see delay in recognizing the dtmf on the FS side.
3. All traffic is RFC2833, no inband.
4. I tried setting "rtp_manual_rtp_bugs=ignore_dtmf_duration", but that did not help.
5. I see at least one other user had the same problem on the thread ( http://lists.freeswitch.org/pipermail/freeswitch-users/2012-August/086720.html), but I don't see a final solution if there was any.
6. I looked at a tcpdump from both the Asterisk and the FS boxes, but nothing obvious jumped at me.

Any help is greatly appreciated.

Thanks,
JP


On Mon, Feb 11, 2013 at 2:18 PM, JP <jaykris@gmail.com> wrote:
I am using Counterpath's eyebeam and their documentation says jitterbuffer is dynamic and cannot be configured. I don't have this problem with play-and-get-digits, so I don't think the RTT is a problem. I was wondering would tweaking the following parameters help in any way? 

min_dtmf_duration
max_dtmf_duration 
default_dtmf_duration

Thanks,
JP

On Mon, Feb 11, 2013 at 1:52 PM, Steven Ayre <steveayre@gmail.com> wrote:
Out of interest, do you know the RTT from phone to server, and the size of the jitterbuffers?

Just wondering whether the lag is a result of the two combined. DTMF digits can also last a noticeable length of time (often ~400ms) and I believe get detected when they 'end'.

-Steve




On 11 February 2013 21:21, Guillermo Ruiz Camauer <grcamauer@gmail.com> wrote:
I have ported an automated polling (surveys) system from Dialogic to FreeSwitch and noticed the same thing. People are used to interrupting the prompts as soon as they hear the option they like.  Is there any way around this delay?

Guillermo

Sent from my iPhone

On 11/02/2013, at 18:17, Michael Collins <msc@freeswitch.org> wrote:

Yes, there is a bit of a delay between the the time the digit is entered and the time that it is officially detected and the playback of the IVR greeting is interrupted. I've not noticed that being a problem, other than people maybe wondering if their digits were not properly entered so they hit it again. Is that what is happening?

-MC

On Fri, Feb 8, 2013 at 4:03 PM, JP <jaykris@gmail.com> wrote:
Hi,
I am observing that when I use IVR menu, the main menu greeting does not get stopped as soon as I enter the dtmf digit. It plays for a couple of seconds longer and then stops and then the dtmf is processed. Is there any tuning parameters that I can tweak to make it stop sooner. 

Thanks,
JP

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_________________________________________________________________________
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_________________________________________________________________________
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