[Freeswitch-users] Puzzling DTMF problem

Jude Mukundane jude.mukundane at gmail.com
Sat Jan 23 13:09:19 MSK 2016


In Uganda, I had to switch providers. I was being driven crazy by partial
DTMF recognition, until one time by hazard I was listening to the call
while punching some digits. I realized with one providers the tones were
really flat with a "pep" kind of sound as opposed to other telcos. I
believe some providers degrade the quality of the call, including DTMF,
past their switches making unusable downstream.

Jude

On Sat, Jan 23, 2016 at 6:57 AM, Jurijs Ivolga <jurij.ivo at gmail.com> wrote:

> Hi Mario,
>
> If I understood correctly this is your case:
>
> VoIP phone ---> freeswitch-----> Voip provider ----> destination
>
> In this case first you need to eliminate all other possible root causes,
> before blaming freeswitch.
>
> 1) Have you tried to call destination number from your mobile and have you
> checked if same issue exist when you are calling from mobile?
>
> 2) Have you tried to call through other VoIP provider to same number?
>
> 3) Maybe you should try different VoIP phone?
>
> Personally I experienced similar issue some time ago and as far as I
> remember issue was on destination side, so I called destination from my
> mobile phone and then I experienced same behavior, what means that issue is
> on destination side.
>
> I hope this will helps.
>
> With kind regards,
>
> Jurijs
>
> On Friday, 22 January 2016, Mario G <mario_fs at mgtech.com> wrote:
>
>> Unless I am mistaken the person last week had a dial plan error which is
>> not my case. I just went to 1.6.6 to see if it was solved but no luck. I am
>> still baffled why a auto attendant would work at the beginning then
>> completely stop working. I can reproduce it every time. I wonder if the
>> other end ‘transfers” to a different AA. Either way I wish I could get DTMF
>> to work all the time.
>> Mario G
>>
>> > On Jan 22, 2016, at 1:00 PM, Bote Man <bote_radio at botecomm.com> wrote:
>> >
>> > This sounds suspiciously like the DTMF trouble discussed on this very
>> list last week or so, no?
>> >
>> > What was the conclusion then?
>> >
>> > Bote
>> >
>> >
>> >> -----Original Message-----
>> >> From: Mario G
>> >> Sent: Friday, 22 January, 2016 13:38
>> >> Subject: [Freeswitch-users] Puzzling DTMF problem
>> >>
>> >> Called an automated system. The first couple of prompts work (press 1
>> for
>> >> english, etc.). Then DTMF is not recognized. For a few places I notice
>> none of
>> >> the DTMF is recognized. But it’s really a puzzle when it’s partial for
>> a the same
>> >> called number. I always thought RFC2833 is what should be set. Any
>> >> thoughts?
>> >> Mario G
>> >
>> >
>> >
>> >
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>>
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>
> _________________________________________________________________________
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> http://www.freeswitchsolutions.com
>
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>
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