[Freeswitch-users] DTMF delay when using FreeSWITCH

Sun Sep 30 08:05:28 MSD 2012

When I try this, the delay disappears but FS detects multiple DTMFs where I only send one…
<action application="export" data="dtmf_type=none" inline="true"/>
<action application="start_dtmf" />

start_dtmf_generate adds the delay and so I'm stuck… 

Any suggestion?
On Sep 29, 2012, at 2:29 PM, Emrah <lists at kavun.ch> wrote:

> Hi all,
> 
> I am now trying to force inband DTMF on my PSTN peers alone. I tried the following with no luck:
> <action application="start_dtmf" />
> <action application="export" data="dtmf_type=inband" />
> 
> The delay is still there and I get the following output in my console for a single DTMF:
> 
> 2012-09-29 19:22:57.357913 [DEBUG] switch_rtp.c:3797 RTP RECV DTMF 2:1040
> 2012-09-29 19:22:57.357913 [DEBUG] switch_ivr_bridge.c:393 Send signal sofia/external/1234567890 [BREAK]
> 2012-09-29 19:22:57.377912 [DEBUG] switch_rtp.c:2736 Send start packet for [2] ts=748000 dur=160/160/1040 seq=27258 lw=748000
> 2012-09-29 19:22:57.397908 [DEBUG] switch_rtp.c:2636 Send middle packet for [2] ts=748000 dur=320/320/1040 seq=27259 lw=748160
> 2012-09-29 19:22:57.417913 [DEBUG] switch_rtp.c:2636 Send middle packet for [2] ts=748000 dur=480/480/1040 seq=27260 lw=748320
> 2012-09-29 19:22:57.437960 [DEBUG] switch_rtp.c:2636 Send middle packet for [2] ts=748000 dur=640/640/1040 seq=27261 lw=748480
> 2012-09-29 19:22:57.457912 [DEBUG] switch_rtp.c:2636 Send middle packet for [2] ts=748000 dur=800/800/1040 seq=27262 lw=748640
> 2012-09-29 19:22:57.477904 [DEBUG] switch_rtp.c:2636 Send middle packet for [2] ts=748000 dur=960/960/1040 seq=27263 lw=748800
> 2012-09-29 19:22:57.497915 [DEBUG] switch_rtp.c:2636 Send end packet for [2] ts=748000 dur=1120/1120/1040 seq=27264 lw=748800
> 2012-09-29 19:22:57.497915 [DEBUG] switch_rtp.c:2636 Send end packet for [2] ts=748000 dur=1120/1120/1040 seq=27265 lw=748800
> 2012-09-29 19:22:57.497915 [DEBUG] switch_rtp.c:2636 Send end packet for [2] ts=748000 dur=1120/1120/1040 seq=27266 lw=748800
> 2012-09-29 19:22:57.497915 [DEBUG] switch_rtp.c:2589 Queue digit delay of 40ms
> 
> Any idea would be greatly appreciated.
> 
> All the best,
> Emrah
> On Sep 27, 2012, at 3:54 PM, Emrah <lists at kavun.ch> wrote:
> 
>> Hey Ken,
>> 
>> I tried pass_rfc2833 with no noticeable change in the delay. It seemed to have made it less accurate though, especially in fast speed sequences.
>> 
>> Can I debug this further and how?
>> 
>> Thanks!
>> On Sep 27, 2012, at 3:00 PM, Ken Rice <krice at freeswitch.org> wrote:
>> 
>>> There can be a delay of DTMF in and DTMF out if you are sending long DTMFs
>>> using 2833, FreeSWITCH gets the entire DMTF and duration then regenerates
>>> it...
>>> 
>>> If you don't need to interpret the DTMF you can set a variable to make it
>>> just pass the DTMF through untouched... But this has its own set of caveats
>>> (ie: if whatever is sending you DTMF is broken it just pass broken 2833
>>> DTMF)
>>> 
>>> See http://wiki.freeswitch.org/wiki/Variable_pass_rfc2833
>>> 
>>> 
>>> 
>>> On 9/27/12 1:49 PM, "Emrah" <lists at kavun.ch> wrote:
>>> 
>>>> MC, the issue does not happen with inband DTMF and there is no delay!
>>>> 
>>>> Any idea on how to debug this further? I can't use inband continuously.
>>>> 
>>>> Thanks!
>>>> Emrah
>>>> 
>>>> On Sep 27, 2012, at 12:46 PM, Emrah <lists at kavun.ch> wrote:
>>>> 
>>>>> Never tried with inband DTMFs. Will check.
>>>>> 
>>>>> Thanks!
>>>>> On Sep 27, 2012, at 12:34 PM, Michael Collins <msc at freeswitch.org> wrote:
>>>>> 
>>>>>> Does it happen whether you use RFC2833 or inband DTMFs? Just curious.
>>>>>> -MC
>>>>>> 
>>>>>> On Wed, Sep 26, 2012 at 3:44 PM, Emrah <lists at kavun.ch> wrote:
>>>>>> Yes I did.
>>>>>> BTW, the example in the Wiki contradicts the inline documentation in
>>>>>> switch.xml.
>>>>>> <!--
>>>>>>      The min-dtmf-duration specifies the minimum DTMF duration to use on
>>>>>>      outgoing events. Events shorter than this will be increased in
>>>>>> duration
>>>>>>      to match min_dtmf_duration. You cannot configure a dtmf duration on
>>>>>> a
>>>>>>      profile that is less than this setting. You may increase this value,
>>>>>>      but cannot set it lower than 400. This value cannot exceed
>>>>>>      max-dtmf-duration. -->
>>>>>> The Wiki shows an example with the value at 100.
>>>>>> 
>>>>>> I tried increasing and decreasing it to no avail, it does not seem to
>>>>>> interfere with anything I can measure with my ear. :P
>>>>>> On Sep 26, 2012, at 5:56 PM, Cesar Bermudez <cesar.bermudez at gmail.com>
>>>>>> wrote:
>>>>>> 
>>>>>>> You tried this:
>>>>>>> http://wiki.freeswitch.org/wiki/Sofia_Configuration_Files#DTMF
>>>>>>> 
>>>>>>> On Wed, Sep 26, 2012 at 3:19 PM, Emrah <lists at kavun.ch> wrote:
>>>>>>> Hi guys,
>>>>>>> 
>>>>>>> I am comparing this with an Asterisk and FreeSWITCH installation, using the
>>>>>>> same route, same codecs, same carrier, same phones and same serversŠ :P
>>>>>>> I experience a delay when pressing DTMFs on the line that uses FreeSWITCH.
>>>>>>> I am estimating the delay to be around 500 ms.
>>>>>>> 
>>>>>>> What are the settings I can fine tune to avoid this?
>>>>>>> 
>>>>>>> All the best,
>>>>>>> Emrah
>>>>>>> _________________________________________________________________________
>>>>>>> Professional FreeSWITCH Consulting Services:
>>>>>>> consulting at freeswitch.org
>>>>>>> http://www.freeswitchsolutions.com
>>>>>>> 
>>>>>>> 
>>>>>>> 
>>>>>>> 
>>>>>>> Official FreeSWITCH Sites
>>>>>>> http://www.freeswitch.org
>>>>>>> http://wiki.freeswitch.org
>>>>>>> http://www.cluecon.com
>>>>>>> 
>>>>>>> FreeSWITCH-users mailing list
>>>>>>> FreeSWITCH-users at lists.freeswitch.org
>>>>>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>>>>>> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
>>>>>>> http://www.freeswitch.org
>>>>>>> 
>>>>>>> _________________________________________________________________________
>>>>>>> Professional FreeSWITCH Consulting Services:
>>>>>>> consulting at freeswitch.org
>>>>>>> http://www.freeswitchsolutions.com
>>>>>>> 
>>>>>>> 
>>>>>>> 
>>>>>>> 
>>>>>>> Official FreeSWITCH Sites
>>>>>>> http://www.freeswitch.org
>>>>>>> http://wiki.freeswitch.org
>>>>>>> http://www.cluecon.com
>>>>>>> 
>>>>>>> FreeSWITCH-users mailing list
>>>>>>> FreeSWITCH-users at lists.freeswitch.org
>>>>>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>>>>>> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
>>>>>>> http://www.freeswitch.org
>>>>>> 
>>>>>> 
>>>>>> _________________________________________________________________________
>>>>>> Professional FreeSWITCH Consulting Services:
>>>>>> consulting at freeswitch.org
>>>>>> http://www.freeswitchsolutions.com
>>>>>> 
>>>>>> 
>>>>>> 
>>>>>> 
>>>>>> Official FreeSWITCH Sites
>>>>>> http://www.freeswitch.org
>>>>>> http://wiki.freeswitch.org
>>>>>> http://www.cluecon.com
>>>>>> 
>>>>>> FreeSWITCH-users mailing list
>>>>>> FreeSWITCH-users at lists.freeswitch.org
>>>>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>>>>> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
>>>>>> http://www.freeswitch.org
>>>>>> 
>>>>>> 
>>>>>> 
>>>>>> -- 
>>>>>> Michael S Collins
>>>>>> Twitter: @mercutioviz
>>>>>> http://www.FreeSWITCH.org
>>>>>> http://www.ClueCon.com
>>>>>> http://www.OSTAG.org
>>>>>> 
>>>>>> 
>>>>>> _________________________________________________________________________
>>>>>> Professional FreeSWITCH Consulting Services:
>>>>>> consulting at freeswitch.org
>>>>>> http://www.freeswitchsolutions.com
>>>>>> 
>>>>>> 
>>>>>> 
>>>>>> 
>>>>>> Official FreeSWITCH Sites
>>>>>> http://www.freeswitch.org
>>>>>> http://wiki.freeswitch.org
>>>>>> http://www.cluecon.com
>>>>>> 
>>>>>> FreeSWITCH-users mailing list
>>>>>> FreeSWITCH-users at lists.freeswitch.org
>>>>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>>>>> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
>>>>>> http://www.freeswitch.org
>>>>> 
>>>> 
>>>> 
>>>> _________________________________________________________________________
>>>> Professional FreeSWITCH Consulting Services:
>>>> consulting at freeswitch.org
>>>> http://www.freeswitchsolutions.com
>>>> 
>>>> 
>>>> 
>>>> 
>>>> Official FreeSWITCH Sites
>>>> http://www.freeswitch.org
>>>> http://wiki.freeswitch.org
>>>> http://www.cluecon.com
>>>> 
>>>> FreeSWITCH-users mailing list
>>>> FreeSWITCH-users at lists.freeswitch.org
>>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>>> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
>>>> http://www.freeswitch.org
>>> 
>>> -- 
>>> Ken
>>> http://www.FreeSWITCH.org
>>> http://www.ClueCon.com
>>> http://www.OSTAG.org
>>> irc.freenode.net #freeswitch
>>> 
>>> 
>>> 
>>> _________________________________________________________________________
>>> Professional FreeSWITCH Consulting Services:
>>> consulting at freeswitch.org
>>> http://www.freeswitchsolutions.com
>>> 
>>> 
>>> 
>>> 
>>> Official FreeSWITCH Sites
>>> http://www.freeswitch.org
>>> http://wiki.freeswitch.org
>>> http://www.cluecon.com
>>> 
>>> FreeSWITCH-users mailing list
>>> FreeSWITCH-users at lists.freeswitch.org
>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
>>> http://www.freeswitch.org
>> 
> 