[Freeswitch-dev] DTMF issue on playback command with openzap

Wed Jun 25 12:12:07 EDT 2008

I'm not sure but I think PIKA cards in openzap use hardware dtmf to avoid
this issue, maybe we can figure out how to do the same thing with Sangoma.

On Wed, Jun 25, 2008 at 10:40 AM, Steve Laroche <slaroche at ip5.com> wrote:

>  Anthony,
>
>
>
> Yes, it does work with echo canceller off.  But without echo canceller,
> when we bridge 2 calls together, we have echo on the line for the voice and
>
> the DTMF.  For the DTMF, its crazy, one DTMF can loop forever.  I'm genna
> contact sangoma to do a follow up on that, but do you have any T1
>
> card provider that works without any problem that you guys work with?
>
>
>
> Thanks.
>
>
>
> SL
>
>
>
> * *
>
>
>
> *From:* freeswitch-dev-bounces at lists.freeswitch.org [mailto:
> freeswitch-dev-bounces at lists.freeswitch.org] *On Behalf Of *Anthony
> Minessale
> *Sent:* Wednesday, June 25, 2008 10:30 AM
>
> *To:* freeswitch-dev at lists.freeswitch.org
> *Subject:* Re: [Freeswitch-dev] DTMF issue on playback command with
> openzap
>
>
>
> just for fun try it with the echo canceler off.
> I know for a fact that sangoma's echo canceler messes up the soft dtmf.
>
> see the power of details? ;)
>
>
>  On Tue, Jun 24, 2008 at 6:43 PM, Steve Laroche <slaroche at ip5.com> wrote:
>
> I'm driving the call with an IVR outside of the freeswitch using
> event_socket.  I'm using
>
> digital lines.  In fact, they are T1 with DMS100 protocol connected to a
> sangoma card.
>
> The driver I'm using for the sangoma card is wanpipe-3.2.5.  This card have
> echo
>
> canceller activated on.
>
>
>
> IVR originate a call through event_socket :
>
>
>
> bgapi originate openzap/1/a/5147884250 &park()
>
>
>
> The call is originated to a PSTN phone.
>
>
>
> When IVR receive the events from event_socket confirming the call is
> connected, IVR
>
> send a playback command :
>
>
>
> SendMsg uuid
>
> call-command: execute
>
> execute-app-name: playback
>
> execute-app-arg: /usr/local/freeswitch/sounds/mission_vm.wav
>
>
>
> Audio file is about 25sec long, so when the playback is executed on line, I
> enter DTMF
>
> on my PSTN phone.
>
>
>
> I'm collecting the DTMF events with my system that drives the event_socket.
> It's
>
> basically my test.
>
>
>
> Thanks.
>
>
>
> SL
>
>
>
> *From:* freeswitch-dev-bounces at lists.freeswitch.org [mailto:
> freeswitch-dev-bounces at lists.freeswitch.org] *On Behalf Of *Anthony
> Minessale
> *Sent:* Tuesday, June 24, 2008 6:39 PM
>
>
> *To:* freeswitch-dev at lists.freeswitch.org
> *Subject:* Re: [Freeswitch-dev] DTMF issue on playback command with
> openzap
>
>
>
>
> I understand your problem so you need not repeat anything you have already
> posted.
>
> please describe in detail exactly what you are doing and how
> when you say openzap specify if it's analog or digital etc
>
> I still cannot tell how you are using openzap in this scheme
>
> are you saying you are doing something like:
>
> originate openzap/1/a/12121231234 1000
>
> to call your pots phone and xfer to 1000
>
> where an ivr is collecting dtmf?
>
>
>
>
>
>
>
>
>  On Mon, Jun 23, 2008 at 2:04 PM, Steve Laroche <slaroche at ip5.com> wrote:
>
> Anthony, do you need more info ?
>
>
>
> *From:* freeswitch-dev-bounces at lists.freeswitch.org [mailto:
> freeswitch-dev-bounces at lists.freeswitch.org] *On Behalf Of *Anthony
> Minessale
> *Sent:* Monday, June 23, 2008 2:33 PM
>
>
> *To:* freeswitch-dev at lists.freeswitch.org
> *Subject:* Re: [Freeswitch-dev] DTMF issue on playback command with
> openzap
>
>
>
> please describe the entire path of the call and what protocol is involved
> on the example that does not work.
>
>
>
> starting with the telephone that placed the call all the way to the
> telephone or ivr that revived it.
>
>    On Mon, Jun 23, 2008 at 1:20 PM, Brian West <brian at freeswitch.org>
> wrote:
>
> You still didn't answer what was receiving the audio.  If its OpenZAP that
> means its inband.  But can you elaborate more on the path?  If the audio has
> ANY gaps in it the DTMF will be double detected but I need to know more
> about that before I can tell what is going on.
>
>
>
> /b
>
>
>
> On Jun 23, 2008, at 1:14 PM, Steve Laroche wrote:
>
>
>
> Instead of 123456789012345678901234567890* I receive
> 1344455677890223444567890233344455567890*.  While for all the other test
> that I did I do receive 123456789012345678901234567890*.  I did this test
> many time and always the same result, I have an issue with DTMF when
> playback is running and the call is originate through openzap.
>
>
>
>
>
>
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>
>
> --
> Anthony Minessale II
>
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>
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> --
> Anthony Minessale II
>
> FreeSWITCH http://www.freeswitch.org/
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>
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-- 
Anthony Minessale II

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